53924391 has 24 divisors (see below), whose sum is σ = 83229120. Its totient is φ = 33524736.

The previous prime is 53924363. The next prime is 53924401. The reversal of 53924391 is 19342935.

It is a happy number.

It is not a de Polignac number, because 53924391 - 2⁵ = 53924359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53924341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15730 + ... + 18848.

It is an arithmetic number, because the mean of its divisors is an integer number (3467880).

Almost surely, 2^53924391 is an apocalyptic number.

53924391 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

53924391 is a deficient number, since it is larger than the sum of its proper divisors (29304729).

53924391 is a wasteful number, since it uses less digits than its factorization.

53924391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255 (or 3252 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 53924391 is about 7343.3228854518. The cubic root of 53924391 is about 377.7998226242.

The spelling of 53924391 in words is "fifty-three million, nine hundred twenty-four thousand, three hundred ninety-one".