53315994 has 16 divisors (see below), whose sum is σ = 107982720. Its totient is φ = 17546880.

The previous prime is 53315971. The next prime is 53316019. The reversal of 53315994 is 49951335.

53315994 = 243² + 244² + ... + 558².

53315994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55767 + ... + 56714.

It is an arithmetic number, because the mean of its divisors is an integer number (6748920).

Almost surely, 2^53315994 is an apocalyptic number.

53315994 is an abundant number, since it is smaller than the sum of its proper divisors (54666726).

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

53315994 is a wasteful number, since it uses less digits than its factorization.

53315994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112565.

The product of its digits is 72900, while the sum is 39.

The square root of 53315994 is about 7301.7801938979. The cubic root of 53315994 is about 376.3736147875.

It can be divided in two parts, 5331 and 5994, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 53315994 in words is "fifty-three million, three hundred fifteen thousand, nine hundred ninety-four".