53290488 has 64 divisors (see below), whose sum is σ = 140958720. Its totient is φ = 16761600.

The previous prime is 53290469. The next prime is 53290513. The reversal of 53290488 is 88409235.

It is a happy number.

It is a super-2 number, since 2×53290488² = 5679752222556288, which contains 22 as substring.

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, 29631 + ... + 31377.

It is an arithmetic number, because the mean of its divisors is an integer number (2202480).

Almost surely, 2^53290488 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 53290488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70479360).

53290488 is an abundant number, since it is smaller than the sum of its proper divisors (87668232).

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

53290488 is a wasteful number, since it uses less digits than its factorization.

53290488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 53290488 is about 7300.0334245810. The cubic root of 53290488 is about 376.3135870426.

The spelling of 53290488 in words is "fifty-three million, two hundred ninety thousand, four hundred eighty-eight".