53455880 has 32 divisors (see below), whose sum is σ = 123076800. Its totient is φ = 20884416.

The previous prime is 53455879. The next prime is 53455931. The reversal of 53455880 is 8855435.

It is a super-2 number, since 2×53455880² = 5715062213148800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13820 + ... + 17259.

It is an arithmetic number, because the mean of its divisors is an integer number (3846150).

Almost surely, 2^53455880 is an apocalyptic number.

It is an amenable number.

53455880 is an abundant number, since it is smaller than the sum of its proper divisors (69620920).

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

53455880 is a wasteful number, since it uses less digits than its factorization.

53455880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31133 (or 31129 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 53455880 is about 7311.3528159979. The cubic root of 53455880 is about 376.7024930899.

The spelling of 53455880 in words is "fifty-three million, four hundred fifty-five thousand, eight hundred eighty".