53400015 has 24 divisors (see below), whose sum is σ = 94133520. Its totient is φ = 27995904.

The previous prime is 53400001. The next prime is 53400059. The reversal of 53400015 is 51000435.

It is not a de Polignac number, because 53400015 - 2²¹ = 51302863 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7402 + ... + 12711.

It is an arithmetic number, because the mean of its divisors is an integer number (3922230).

Almost surely, 2^53400015 is an apocalyptic number.

53400015 is a deficient number, since it is larger than the sum of its proper divisors (40733505).

53400015 is a wasteful number, since it uses less digits than its factorization.

53400015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20183 (or 20180 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 53400015 is about 7307.5313889165. The cubic root of 53400015 is about 376.5712208456.

The spelling of 53400015 in words is "fifty-three million, four hundred thousand, fifteen".