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57007711531 is a prime number
BaseRepresentation
bin110101000101111011…
…001010010100101011
312110010222001210122101
4311011323022110223
51413222433232111
642104453034231
74055463360421
oct650573122453
9173128053571
1057007711531
11221a4404491
12b06b925977
1354b68459b4
142a8b2d7111
151739bd3bc1
hexd45eca52b

57007711531 has 2 divisors, whose sum is σ = 57007711532. Its totient is φ = 57007711530.

The previous prime is 57007711529. The next prime is 57007711567. The reversal of 57007711531 is 13511770075.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57007711531 - 21 = 57007711529 is a prime.

It is a super-2 number, since 2×570077115312 (a number of 22 digits) contains 22 as substring.

Together with 57007711529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57007751531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28503855765 + 28503855766.

It is an arithmetic number, because the mean of its divisors is an integer number (28503855766).

Almost surely, 257007711531 is an apocalyptic number.

57007711531 is a deficient number, since it is larger than the sum of its proper divisors (1).

57007711531 is an equidigital number, since it uses as much as digits as its factorization.

57007711531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25725, while the sum is 37.

The spelling of 57007711531 in words is "fifty-seven billion, seven million, seven hundred eleven thousand, five hundred thirty-one".