53323407 has 32 divisors (see below), whose sum is σ = 87298560. Its totient is φ = 31996800.

The previous prime is 53323399. The next prime is 53323421. The reversal of 53323407 is 70432335.

It is not a de Polignac number, because 53323407 - 2³ = 53323399 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53323447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8032 + ... + 13082.

It is an arithmetic number, because the mean of its divisors is an integer number (2728080).

Almost surely, 2^53323407 is an apocalyptic number.

53323407 is a deficient number, since it is larger than the sum of its proper divisors (33975153).

53323407 is a wasteful number, since it uses less digits than its factorization.

53323407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100 (or 5094 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 53323407 is about 7302.2877921923. The cubic root of 53323407 is about 376.3910575102.

The spelling of 53323407 in words is "fifty-three million, three hundred twenty-three thousand, four hundred seven".