53997900 has 72 divisors (see below), whose sum is σ = 170447424. Its totient is φ = 13089600.

The previous prime is 53997887. The next prime is 53997907. The reversal of 53997900 is 979935.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53997907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4882 + ... + 11481.

Almost surely, 2^53997900 is an apocalyptic number.

53997900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53997900 is an abundant number, since it is smaller than the sum of its proper divisors (116449524).

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

53997900 is a wasteful number, since it uses less digits than its factorization.

53997900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16391 (or 16384 counting only the distinct ones).

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 53997900 is about 7348.3263400587. The cubic root of 53997900 is about 377.9714152120.

The spelling of 53997900 in words is "fifty-three million, nine hundred ninety-seven thousand, nine hundred".