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53212553 = 331373431
BaseRepresentation
bin1100101011111…
…1010110001001
310201010110220022
43022333112021
5102110300203
65140310225
71214204432
oct312772611
9121113808
1053212553
1128045419
12159a2375
13b041724
1470d2489
154a11a38
hex32bf589

53212553 has 8 divisors (see below), whose sum is σ = 53640576. Its totient is φ = 52786800.

The previous prime is 53212541. The next prime is 53212561. The reversal of 53212553 is 35521235.

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 53212553 - 28 = 53212297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53218553) 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, 123248 + ... + 123678.

It is an arithmetic number, because the mean of its divisors is an integer number (6705072).

Almost surely, 253212553 is an apocalyptic number.

It is an amenable number.

53212553 is a deficient number, since it is larger than the sum of its proper divisors (428023).

53212553 is a wasteful number, since it uses less digits than its factorization.

53212553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135.

The product of its digits is 4500, while the sum is 26.

The square root of 53212553 is about 7294.6934822513. The cubic root of 53212553 is about 376.1300501733.

Adding to 53212553 its reverse (35521235), we get a palindrome (88733788).

The spelling of 53212553 in words is "fifty-three million, two hundred twelve thousand, five hundred fifty-three".

Divisors: 1 331 373 431 123463 142661 160763 53212553