57204071 has 2 divisors, whose sum is σ = 57204072. Its totient is φ = 57204070.

The previous prime is 57204067. The next prime is 57204073. The reversal of 57204071 is 17040275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57204071 - 2² = 57204067 is a prime.

Together with 57204073, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57204071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57204073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28602035 + 28602036.

It is an arithmetic number, because the mean of its divisors is an integer number (28602036).

Almost surely, 2^57204071 is an apocalyptic number.

57204071 is a deficient number, since it is larger than the sum of its proper divisors (1).

57204071 is an equidigital number, since it uses as much as digits as its factorization.

57204071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 57204071 is about 7563.3372924920. The cubic root of 57204071 is about 385.3088453373.

The spelling of 57204071 in words is "fifty-seven million, two hundred four thousand, seventy-one".