53501992 has 48 divisors (see below), whose sum is σ = 108364860. Its totient is φ = 24754176.

The previous prime is 53501983. The next prime is 53501993. The reversal of 53501992 is 29910535.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 29746116 + 23755876 = 5454^2 + 4874^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (53501993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168618 + ... + 168934.

Almost surely, 2^53501992 is an apocalyptic number.

It is an amenable number.

53501992 is an abundant number, since it is smaller than the sum of its proper divisors (54862868).

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

53501992 is a wasteful number, since it uses less digits than its factorization.

53501992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 53501992 is about 7314.5055882131. The cubic root of 53501992 is about 376.8107787331.

The spelling of 53501992 in words is "fifty-three million, five hundred one thousand, nine hundred ninety-two".