52188894 has 32 divisors (see below), whose sum is σ = 118448640. Its totient is φ = 17025336.

The previous prime is 52188883. The next prime is 52188911. The reversal of 52188894 is 49888125.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7744 + ... + 12819.

It is an arithmetic number, because the mean of its divisors is an integer number (3701520).

Almost surely, 2^52188894 is an apocalyptic number.

52188894 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

52188894 is an abundant number, since it is smaller than the sum of its proper divisors (66259746).

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

52188894 is a wasteful number, since it uses less digits than its factorization.

52188894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20621 (or 20615 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 52188894 is about 7224.1881204742. The cubic root of 52188894 is about 373.7025239935.

The spelling of 52188894 in words is "fifty-two million, one hundred eighty-eight thousand, eight hundred ninety-four".