53391884 has 24 divisors (see below), whose sum is σ = 114998688. Its totient is φ = 21121920.

The previous prime is 53391869. The next prime is 53391907. The reversal of 53391884 is 48819335.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72977 + ... + 73704.

It is an arithmetic number, because the mean of its divisors is an integer number (4791612).

Almost surely, 2^53391884 is an apocalyptic number.

It is an amenable number.

53391884 is an abundant number, since it is smaller than the sum of its proper divisors (61606804).

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

53391884 is a wasteful number, since it uses less digits than its factorization.

53391884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146705 (or 146703 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 53391884 is about 7306.9750239070. The cubic root of 53391884 is about 376.5521068934.

The spelling of 53391884 in words is "fifty-three million, three hundred ninety-one thousand, eight hundred eighty-four".