53388916 has 12 divisors (see below), whose sum is σ = 106777888. Its totient is φ = 22880952.

The previous prime is 53388901. The next prime is 53388931. The reversal of 53388916 is 61988335.

It is an interprime number because it is at equal distance from previous prime (53388901) and next prime (53388931).

53388916 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 953346 + ... + 953401.

Almost surely, 2^53388916 is an apocalyptic number.

It is an amenable number.

53388916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53388916 is a wasteful number, since it uses less digits than its factorization.

53388916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906758 (or 1906756 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 53388916 is about 7306.7719274656. The cubic root of 53388916 is about 376.5451293824.

The spelling of 53388916 in words is "fifty-three million, three hundred eighty-eight thousand, nine hundred sixteen".