57239629 has 24 divisors (see below), whose sum is σ = 64256328. Its totient is φ = 50918400.

The previous prime is 57239627. The next prime is 57239653. The reversal of 57239629 is 92693275.

57239629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 15015625 + 42224004 = 3875^2 + 6498^2 .

It is not a de Polignac number, because 57239629 - 2¹ = 57239627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57239627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 566679 + ... + 566779.

It is an arithmetic number, because the mean of its divisors is an integer number (2677347).

Almost surely, 2^57239629 is an apocalyptic number.

It is an amenable number.

57239629 is a deficient number, since it is larger than the sum of its proper divisors (7016699).

57239629 is a wasteful number, since it uses less digits than its factorization.

57239629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 208 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 57239629 is about 7565.6876091998. The cubic root of 57239629 is about 385.3886646803.

The spelling of 57239629 in words is "fifty-seven million, two hundred thirty-nine thousand, six hundred twenty-nine".