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57295631 is a prime number
BaseRepresentation
bin1101101010010…
…0001100001111
310222210220211102
43122210030033
5104131430011
65404013315
71264001441
oct332441417
9128726742
1057295631
112a384068
121723123b
13bb41053
147876491
15506b73b
hex36a430f

57295631 has 2 divisors, whose sum is σ = 57295632. Its totient is φ = 57295630.

The previous prime is 57295577. The next prime is 57295649. The reversal of 57295631 is 13659275.

It is a happy number.

57295631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57295631 is a prime.

It is a super-2 number, since 2×572956312 = 6565578663376322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57295681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28647815 + 28647816.

It is an arithmetic number, because the mean of its divisors is an integer number (28647816).

Almost surely, 257295631 is an apocalyptic number.

57295631 is a deficient number, since it is larger than the sum of its proper divisors (1).

57295631 is an equidigital number, since it uses as much as digits as its factorization.

57295631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 57295631 is about 7569.3877559549. The cubic root of 57295631 is about 385.5143089910.

The spelling of 57295631 in words is "fifty-seven million, two hundred ninety-five thousand, six hundred thirty-one".