57073031 has 2 divisors, whose sum is σ = 57073032. Its totient is φ = 57073030.

The previous prime is 57073007. The next prime is 57073033. The reversal of 57073031 is 13037075.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57073031 is a prime.

It is a super-2 number, since 2×57073031² = 6514661735053922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 57073033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57073033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28536515 + 28536516.

It is an arithmetic number, because the mean of its divisors is an integer number (28536516).

Almost surely, 2^57073031 is an apocalyptic number.

57073031 is a deficient number, since it is larger than the sum of its proper divisors (1).

57073031 is an equidigital number, since it uses as much as digits as its factorization.

57073031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 57073031 is about 7554.6694831740. The cubic root of 57073031 is about 385.0144054879.

The spelling of 57073031 in words is "fifty-seven million, seventy-three thousand, thirty-one".