53400538 has 8 divisors (see below), whose sum is σ = 82684800. Its totient is φ = 25838940.

The previous prime is 53400499. The next prime is 53400547. The reversal of 53400538 is 83500435.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 430588 + ... + 430711.

It is an arithmetic number, because the mean of its divisors is an integer number (10335600).

Almost surely, 2^53400538 is an apocalyptic number.

53400538 is a deficient number, since it is larger than the sum of its proper divisors (29284262).

53400538 is a wasteful number, since it uses less digits than its factorization.

53400538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861332.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 53400538 is about 7307.5671738274. The cubic root of 53400538 is about 376.5724502217.

The spelling of 53400538 in words is "fifty-three million, four hundred thousand, five hundred thirty-eight".