53040432 has 20 divisors (see below), whose sum is σ = 137021240. Its totient is φ = 17680128.

The previous prime is 53040397. The next prime is 53040443. The reversal of 53040432 is 23404035.

It is a happy number.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 53040399 and 53040408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552457 + ... + 552552.

It is an arithmetic number, because the mean of its divisors is an integer number (6851062).

Almost surely, 2^53040432 is an apocalyptic number.

It is an amenable number.

53040432 is an abundant number, since it is smaller than the sum of its proper divisors (83980808).

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

53040432 is a wasteful number, since it uses less digits than its factorization.

53040432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105020 (or 1105014 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 53040432 is about 7282.8862410448. The cubic root of 53040432 is about 375.7240694737.

Adding to 53040432 its reverse (23404035), we get a palindrome (76444467).

The spelling of 53040432 in words is "fifty-three million, forty thousand, four hundred thirty-two".