53317432 has 16 divisors (see below), whose sum is σ = 114251760. Its totient is φ = 22850304.

The previous prime is 53317421. The next prime is 53317441. The reversal of 53317432 is 23471335.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 53317432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475993 + ... + 476104.

It is an arithmetic number, because the mean of its divisors is an integer number (7140735).

Almost surely, 2^53317432 is an apocalyptic number.

It is an amenable number.

53317432 is an abundant number, since it is smaller than the sum of its proper divisors (60934328).

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

53317432 is a wasteful number, since it uses less digits than its factorization.

53317432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952110 (or 952106 counting only the distinct ones).

The product of its digits is 7560, while the sum is 28.

The square root of 53317432 is about 7301.8786623718. The cubic root of 53317432 is about 376.3769985150.

Adding to 53317432 its reverse (23471335), we get a palindrome (76788767).

It can be divided in two parts, 5331743 and 2, that added together give a triangular number (5331745 = T₃₂₆₅).

The spelling of 53317432 in words is "fifty-three million, three hundred seventeen thousand, four hundred thirty-two".