53151980 has 96 divisors (see below), whose sum is σ = 135647232. Its totient is φ = 17107200.

The previous prime is 53151961. The next prime is 53152003. The reversal of 53151980 is 8915135.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160415 + ... + 160745.

It is an arithmetic number, because the mean of its divisors is an integer number (1412992).

Almost surely, 2^53151980 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 53151980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67823616).

53151980 is an abundant number, since it is smaller than the sum of its proper divisors (82495252).

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

53151980 is a wasteful number, since it uses less digits than its factorization.

53151980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 53151980 is about 7290.5404463592. The cubic root of 53151980 is about 375.9872769952.

The spelling of 53151980 in words is "fifty-three million, one hundred fifty-one thousand, nine hundred eighty".