57620081 has 2 divisors, whose sum is σ = 57620082. Its totient is φ = 57620080.

The previous prime is 57620077. The next prime is 57620093. The reversal of 57620081 is 18002675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53949025 + 3671056 = 7345^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 57620081 - 2² = 57620077 is a prime.

It is a super-2 number, since 2×57620081² = 6640147468893122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57620881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28810040 + 28810041.

It is an arithmetic number, because the mean of its divisors is an integer number (28810041).

Almost surely, 2^57620081 is an apocalyptic number.

It is an amenable number.

57620081 is a deficient number, since it is larger than the sum of its proper divisors (1).

57620081 is an equidigital number, since it uses as much as digits as its factorization.

57620081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 57620081 is about 7590.7892211548. The cubic root of 57620081 is about 386.2406282397.

The spelling of 57620081 in words is "fifty-seven million, six hundred twenty thousand, eighty-one".