53232491 has 16 divisors (see below), whose sum is σ = 61488000. Its totient is φ = 45646848.

The previous prime is 53232479. The next prime is 53232497. The reversal of 53232491 is 19423235.

53232491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-53232491 is a prime.

It is a super-4 number, since 4×53232491⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53232497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15935 + ... + 18983.

It is an arithmetic number, because the mean of its divisors is an integer number (3843000).

Almost surely, 2^53232491 is an apocalyptic number.

53232491 is a deficient number, since it is larger than the sum of its proper divisors (8255509).

53232491 is a wasteful number, since it uses less digits than its factorization.

53232491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158.

The product of its digits is 6480, while the sum is 29.

The square root of 53232491 is about 7296.0599641176. The cubic root of 53232491 is about 376.1770211985.

It can be divided in two parts, 5 and 3232491, that multiplied together give a triangular number (16162455 = T₅₆₈₅).

The spelling of 53232491 in words is "fifty-three million, two hundred thirty-two thousand, four hundred ninety-one".