53491272 has 32 divisors (see below), whose sum is σ = 134059200. Its totient is φ = 17786304.

The previous prime is 53491271. The next prime is 53491279. The reversal of 53491272 is 27219435.

It is a super-2 number, since 2×53491272² = 5722632360355968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53491271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7998 + ... + 13074.

It is an arithmetic number, because the mean of its divisors is an integer number (4189350).

Almost surely, 2^53491272 is an apocalyptic number.

It is an amenable number.

53491272 is an abundant number, since it is smaller than the sum of its proper divisors (80567928).

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

53491272 is a wasteful number, since it uses less digits than its factorization.

53491272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525 (or 5521 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 53491272 is about 7313.7727610311. The cubic root of 53491272 is about 376.7856103159.

It can be divided in two parts, 534 and 91272, that added together give a triangular number (91806 = T₄₂₈).

The spelling of 53491272 in words is "fifty-three million, four hundred ninety-one thousand, two hundred seventy-two".