53559690 has 32 divisors (see below), whose sum is σ = 136105920. Its totient is φ = 13442304.

The previous prime is 53559679. The next prime is 53559697. The reversal of 53559690 is 9695535.

It is a super-2 number, since 2×53559690² = 5737280785792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53559697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52000 + ... + 53019.

It is an arithmetic number, because the mean of its divisors is an integer number (4253310).

Almost surely, 2^53559690 is an apocalyptic number.

53559690 is an abundant number, since it is smaller than the sum of its proper divisors (82546230).

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

53559690 is a wasteful number, since it uses less digits than its factorization.

53559690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105046.

The product of its (nonzero) digits is 182250, while the sum is 42.

The square root of 53559690 is about 7318.4486060913. The cubic root of 53559690 is about 376.9461843927.

The spelling of 53559690 in words is "fifty-three million, five hundred fifty-nine thousand, six hundred ninety".