53516580 has 48 divisors (see below), whose sum is σ = 161375424. Its totient is φ = 13173120.

The previous prime is 53516579. The next prime is 53516609. The reversal of 53516580 is 8561535.

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, 33526 + ... + 35085.

It is an arithmetic number, because the mean of its divisors is an integer number (3361988).

Almost surely, 2^53516580 is an apocalyptic number.

It is an amenable number.

53516580 is an abundant number, since it is smaller than the sum of its proper divisors (107858844).

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

53516580 is a wasteful number, since it uses less digits than its factorization.

53516580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68636 (or 68634 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 53516580 is about 7315.5027168336. The cubic root of 53516580 is about 376.8450230413.

The spelling of 53516580 in words is "fifty-three million, five hundred sixteen thousand, five hundred eighty".