57240763 has 2 divisors, whose sum is σ = 57240764. Its totient is φ = 57240762.

The previous prime is 57240731. The next prime is 57240769. The reversal of 57240763 is 36704275.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57240763 - 2⁵ = 57240731 is a prime.

It is not a weakly prime, because it can be changed into another prime (57240769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28620381 + 28620382.

It is an arithmetic number, because the mean of its divisors is an integer number (28620382).

Almost surely, 2^57240763 is an apocalyptic number.

57240763 is a deficient number, since it is larger than the sum of its proper divisors (1).

57240763 is an equidigital number, since it uses as much as digits as its factorization.

57240763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 57240763 is about 7565.7625524464. The cubic root of 57240763 is about 385.3912096995.

The spelling of 57240763 in words is "fifty-seven million, two hundred forty thousand, seven hundred sixty-three".