53993118 has 16 divisors (see below), whose sum is σ = 108064656. Its totient is φ = 17984640.

The previous prime is 53993081. The next prime is 53993119. The reversal of 53993118 is 81139935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53993119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9558 + ... + 14118.

It is an arithmetic number, because the mean of its divisors is an integer number (6754041).

Almost surely, 2^53993118 is an apocalyptic number.

53993118 is an abundant number, since it is smaller than the sum of its proper divisors (54071538).

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

53993118 is a wasteful number, since it uses less digits than its factorization.

53993118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6539.

The product of its digits is 29160, while the sum is 39.

The square root of 53993118 is about 7348.0009526401. Note that the first 3 decimals coincide. The cubic root of 53993118 is about 377.9602572925.

The spelling of 53993118 in words is "fifty-three million, nine hundred ninety-three thousand, one hundred eighteen".