53157996 has 36 divisors (see below), whose sum is σ = 134606472. Its totient is φ = 17688384.

The previous prime is 53157961. The next prime is 53158051. The reversal of 53157996 is 69975135.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29991 + ... + 31713.

Almost surely, 2^53157996 is an apocalyptic number.

It is an amenable number.

53157996 is an abundant number, since it is smaller than the sum of its proper divisors (81448476).

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

53157996 is a wasteful number, since it uses less digits than its factorization.

53157996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590 (or 2585 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 53157996 is about 7290.9530241252. The cubic root of 53157996 is about 376.0014618172.

The spelling of 53157996 in words is "fifty-three million, one hundred fifty-seven thousand, nine hundred ninety-six".