53113918 has 24 divisors (see below), whose sum is σ = 94314024. Its totient is φ = 22284240.

The previous prime is 53113903. The next prime is 53113937. The reversal of 53113918 is 81931135.

It is a self number, because there is not a number n which added to its sum of digits gives 53113918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5296 + ... + 11587.

It is an arithmetic number, because the mean of its divisors is an integer number (3929751).

Almost surely, 2^53113918 is an apocalyptic number.

53113918 is a deficient number, since it is larger than the sum of its proper divisors (41200106).

53113918 is a wasteful number, since it uses less digits than its factorization.

53113918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16920 (or 16909 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 53113918 is about 7287.9296099784. The cubic root of 53113918 is about 375.8975077142.

It can be divided in two parts, 5311 and 3918, that added together give a palindrome (9229).

The spelling of 53113918 in words is "fifty-three million, one hundred thirteen thousand, nine hundred eighteen".