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53542451953 = 1923891179583
BaseRepresentation
bin110001110111011000…
…001111101011110001
312010012110120101011001
4301313120033223301
51334123331430303
640332544322001
73603555222004
oct616730175361
9163173511131
1053542451953
11207863556a1
12a463313301
135083950c43
14283cdbd53b
1515d588a31d
hexc7760faf1

53542451953 has 8 divisors (see below), whose sum is σ = 56384115200. Its totient is φ = 50703152688.

The previous prime is 53542451947. The next prime is 53542451957. The reversal of 53542451953 is 35915424535.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53542451953 - 213 = 53542443761 is a prime.

It is a super-2 number, since 2×535424519532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53542451957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544401 + ... + 635182.

It is an arithmetic number, because the mean of its divisors is an integer number (7048014400).

Almost surely, 253542451953 is an apocalyptic number.

It is an amenable number.

53542451953 is a deficient number, since it is larger than the sum of its proper divisors (2841663247).

53542451953 is a wasteful number, since it uses less digits than its factorization.

53542451953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181991.

The product of its digits is 1620000, while the sum is 46.

The spelling of 53542451953 in words is "fifty-three billion, five hundred forty-two million, four hundred fifty-one thousand, nine hundred fifty-three".

Divisors: 1 19 2389 45391 1179583 22412077 2818023787 53542451953