57761131 has 2 divisors, whose sum is σ = 57761132. Its totient is φ = 57761130.

The previous prime is 57761117. The next prime is 57761147. The reversal of 57761131 is 13116775.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57761131 - 2¹³ = 57752939 is a prime.

It is a super-2 number, since 2×57761131² = 6672696508798322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57761093 and 57761102.

It is not a weakly prime, because it can be changed into another prime (57761101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28880565 + 28880566.

It is an arithmetic number, because the mean of its divisors is an integer number (28880566).

Almost surely, 2^57761131 is an apocalyptic number.

57761131 is a deficient number, since it is larger than the sum of its proper divisors (1).

57761131 is an equidigital number, since it uses as much as digits as its factorization.

57761131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410, while the sum is 31.

The square root of 57761131 is about 7600.0744075305. The cubic root of 57761131 is about 386.5555349309. Note that the first 4 decimals are identical.

The spelling of 57761131 in words is "fifty-seven million, seven hundred sixty-one thousand, one hundred thirty-one".