57242051 has 2 divisors, whose sum is σ = 57242052. Its totient is φ = 57242050.

The previous prime is 57242039. The next prime is 57242083. The reversal of 57242051 is 15024275.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57242051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57242051.

It is not a weakly prime, because it can be changed into another prime (57242021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28621025 + 28621026.

It is an arithmetic number, because the mean of its divisors is an integer number (28621026).

Almost surely, 2^57242051 is an apocalyptic number.

57242051 is a deficient number, since it is larger than the sum of its proper divisors (1).

57242051 is an equidigital number, since it uses as much as digits as its factorization.

57242051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 57242051 is about 7565.8476722704. The cubic root of 57242051 is about 385.3941002978.

The spelling of 57242051 in words is "fifty-seven million, two hundred forty-two thousand, fifty-one".