57029971 has 2 divisors, whose sum is σ = 57029972. Its totient is φ = 57029970.

The previous prime is 57029957. The next prime is 57029977. The reversal of 57029971 is 17992075.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57029971 - 2⁵ = 57029939 is a prime.

It is not a weakly prime, because it can be changed into another prime (57029977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28514985 + 28514986.

It is an arithmetic number, because the mean of its divisors is an integer number (28514986).

Almost surely, 2^57029971 is an apocalyptic number.

57029971 is a deficient number, since it is larger than the sum of its proper divisors (1).

57029971 is an equidigital number, since it uses as much as digits as its factorization.

57029971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 57029971 is about 7551.8190523873. The cubic root of 57029971 is about 384.9175536056.

The spelling of 57029971 in words is "fifty-seven million, twenty-nine thousand, nine hundred seventy-one".