57023761 has 2 divisors, whose sum is σ = 57023762. Its totient is φ = 57023760.

The previous prime is 57023753. The next prime is 57023783. The reversal of 57023761 is 16732075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31013761 + 26010000 = 5569^2 + 5100^2 .

It is a cyclic number.

It is not a de Polignac number, because 57023761 - 2³ = 57023753 is a prime.

It is not a weakly prime, because it can be changed into another prime (57023711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28511880 + 28511881.

It is an arithmetic number, because the mean of its divisors is an integer number (28511881).

Almost surely, 2^57023761 is an apocalyptic number.

It is an amenable number.

57023761 is a deficient number, since it is larger than the sum of its proper divisors (1).

57023761 is an equidigital number, since it uses as much as digits as its factorization.

57023761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 57023761 is about 7551.4078819780. The cubic root of 57023761 is about 384.9035818598.

The spelling of 57023761 in words is "fifty-seven million, twenty-three thousand, seven hundred sixty-one".