57643031 has 2 divisors, whose sum is σ = 57643032. Its totient is φ = 57643030.

The previous prime is 57642989. The next prime is 57643049. The reversal of 57643031 is 13034675.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57643031 - 2⁶ = 57642967 is a prime.

It is a super-2 number, since 2×57643031² = 6645438045733922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 57642985 and 57643003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57643331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28821515 + 28821516.

It is an arithmetic number, because the mean of its divisors is an integer number (28821516).

Almost surely, 2^57643031 is an apocalyptic number.

57643031 is a deficient number, since it is larger than the sum of its proper divisors (1).

57643031 is an equidigital number, since it uses as much as digits as its factorization.

57643031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 57643031 is about 7592.3007711760. The cubic root of 57643031 is about 386.2919011389.

The spelling of 57643031 in words is "fifty-seven million, six hundred forty-three thousand, thirty-one".