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57461985013 is a prime number
BaseRepresentation
bin110101100001000000…
…000100111011110101
312111022121212021201011
4311201000010323311
51420140232010023
642221521432221
74102650546046
oct654100047365
9174277767634
1057461985013
1122407879914
12b177a9b671
1355599aa884
142ad17888cd
151764a1850d
hexd61004ef5

57461985013 has 2 divisors, whose sum is σ = 57461985014. Its totient is φ = 57461985012.

The previous prime is 57461984969. The next prime is 57461985023. The reversal of 57461985013 is 31058916475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43433477649 + 14028507364 = 208407^2 + 118442^2 .

It is a cyclic number.

It is not a de Polignac number, because 57461985013 - 29 = 57461984501 is a prime.

It is a super-2 number, since 2×574619850132 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57461985023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28730992506 + 28730992507.

It is an arithmetic number, because the mean of its divisors is an integer number (28730992507).

Almost surely, 257461985013 is an apocalyptic number.

It is an amenable number.

57461985013 is a deficient number, since it is larger than the sum of its proper divisors (1).

57461985013 is an equidigital number, since it uses as much as digits as its factorization.

57461985013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 57461985013 in words is "fifty-seven billion, four hundred sixty-one million, nine hundred eighty-five thousand, thirteen".