53297972 has 24 divisors (see below), whose sum is σ = 114796416. Its totient is φ = 21084768.

The previous prime is 53297947. The next prime is 53297987. The reversal of 53297972 is 27979235.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72848 + ... + 73575.

It is an arithmetic number, because the mean of its divisors is an integer number (4783184).

Almost surely, 2^53297972 is an apocalyptic number.

53297972 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

53297972 is an abundant number, since it is smaller than the sum of its proper divisors (61498444).

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

53297972 is a wasteful number, since it uses less digits than its factorization.

53297972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146447 (or 146445 counting only the distinct ones).

The product of its digits is 238140, while the sum is 44.

The square root of 53297972 is about 7300.5460069778. The cubic root of 53297972 is about 376.3312024381.

The spelling of 53297972 in words is "fifty-three million, two hundred ninety-seven thousand, nine hundred seventy-two".