53188980 has 192 divisors, whose sum is σ = 175176960. Its totient is φ = 11943936.

The previous prime is 53188957. The next prime is 53189009. The reversal of 53188980 is 8988135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 548292 + ... + 548388.

It is an arithmetic number, because the mean of its divisors is an integer number (912380).

Almost surely, 2^53188980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53188980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87588480).

53188980 is an abundant number, since it is smaller than the sum of its proper divisors (121987980).

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

53188980 is a wasteful number, since it uses less digits than its factorization.

53188980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 53188980 is about 7293.0775396947. The cubic root of 53188980 is about 376.0745004782.

The spelling of 53188980 in words is "fifty-three million, one hundred eighty-eight thousand, nine hundred eighty".