53528904 has 128 divisors (see below), whose sum is σ = 174787200. Its totient is φ = 14964480.

The previous prime is 53528897. The next prime is 53528921. The reversal of 53528904 is 40982535.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 30022 + ... + 31754.

It is an arithmetic number, because the mean of its divisors is an integer number (1365525).

Almost surely, 2^53528904 is an apocalyptic number.

53528904 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53528904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87393600).

53528904 is an abundant number, since it is smaller than the sum of its proper divisors (121258296).

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

53528904 is a wasteful number, since it uses less digits than its factorization.

53528904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 53528904 is about 7316.3449891322. The cubic root of 53528904 is about 376.8739479191.

The spelling of 53528904 in words is "fifty-three million, five hundred twenty-eight thousand, nine hundred four".