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52451560054420 = 2252622578002721
BaseRepresentation
bin10111110110100010101001…
…00110101101111010010100
320212201022122101220122001221
423323101110212231322110
523333331243333220140
6303315525233300124
714022333361152442
oct1373212446557224
9225638571818057
1052451560054420
111579264427229a
125a71569404644
132336212623307
14cd4951c43b92
1560e5bad3914a
hex2fb4549ade94

52451560054420 has 12 divisors (see below), whose sum is σ = 110148276114324. Its totient is φ = 20980624021760.

The previous prime is 52451560054409. The next prime is 52451560054429. The reversal of 52451560054420 is 2445006515425.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36541130345476 + 15910429708944 = 6044926^2 + 3988788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52451560054429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311289001341 + ... + 1311289001380.

It is an arithmetic number, because the mean of its divisors is an integer number (9179023009527).

Almost surely, 252451560054420 is an apocalyptic number.

It is an amenable number.

52451560054420 is an abundant number, since it is smaller than the sum of its proper divisors (57696716059904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52451560054420 is a wasteful number, since it uses less digits than its factorization.

52451560054420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622578002730 (or 2622578002728 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 43.

Adding to 52451560054420 its reverse (2445006515425), we get a palindrome (54896566569845).

The spelling of 52451560054420 in words is "fifty-two trillion, four hundred fifty-one billion, five hundred sixty million, fifty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2622578002721 5245156005442 10490312010884 13112890013605 26225780027210 52451560054420