57239101 has 2 divisors, whose sum is σ = 57239102. Its totient is φ = 57239100.

The previous prime is 57239059. The next prime is 57239123. The reversal of 57239101 is 10193275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56475225 + 763876 = 7515^2 + 874^2 .

It is a cyclic number.

It is not a de Polignac number, because 57239101 - 2¹¹ = 57237053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57239101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57239201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28619550 + 28619551.

It is an arithmetic number, because the mean of its divisors is an integer number (28619551).

Almost surely, 2^57239101 is an apocalyptic number.

It is an amenable number.

57239101 is a deficient number, since it is larger than the sum of its proper divisors (1).

57239101 is an equidigital number, since it uses as much as digits as its factorization.

57239101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 57239101 is about 7565.6527147365. The cubic root of 57239101 is about 385.3874796864.

The spelling of 57239101 in words is "fifty-seven million, two hundred thirty-nine thousand, one hundred one".