53157904 has 10 divisors (see below), whose sum is σ = 102993470. Its totient is φ = 26578944.

The previous prime is 53157869. The next prime is 53157911. The reversal of 53157904 is 40975135.

It can be written as a sum of positive squares in only one way, i.e., 51840000 + 1317904 = 7200^2 + 1148^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53157904.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1661169 + ... + 1661200.

It is an arithmetic number, because the mean of its divisors is an integer number (10299347).

Almost surely, 2^53157904 is an apocalyptic number.

It is an amenable number.

53157904 is a deficient number, since it is larger than the sum of its proper divisors (49835566).

53157904 is a wasteful number, since it uses less digits than its factorization.

53157904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322377 (or 3322371 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 53157904 is about 7290.9467149335. The cubic root of 53157904 is about 376.0012449031.

The spelling of 53157904 in words is "fifty-three million, one hundred fifty-seven thousand, nine hundred four".