53157830 has 32 divisors (see below), whose sum is σ = 108926208. Its totient is φ = 18488800.

The previous prime is 53157829. The next prime is 53157833. The reversal of 53157830 is 3875135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53157833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7976 + ... + 13035.

It is an arithmetic number, because the mean of its divisors is an integer number (3403944).

Almost surely, 2^53157830 is an apocalyptic number.

53157830 is an abundant number, since it is smaller than the sum of its proper divisors (55768378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53157830 is a wasteful number, since it uses less digits than its factorization.

53157830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21052.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 53157830 is about 7290.9416401450. The cubic root of 53157830 is about 376.0010704285.

The spelling of 53157830 in words is "fifty-three million, one hundred fifty-seven thousand, eight hundred thirty".