55552870 has 16 divisors (see below), whose sum is σ = 101027808. Its totient is φ = 21991680.

The previous prime is 55552841. The next prime is 55552877. The reversal of 55552870 is 7825555.

It is a super-2 number, since 2×55552870² = 6172242730473800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55552877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27666 + ... + 29605.

It is an arithmetic number, because the mean of its divisors is an integer number (6314238).

Almost surely, 2^55552870 is an apocalyptic number.

55552870 is a deficient number, since it is larger than the sum of its proper divisors (45474938).

55552870 is a wasteful number, since it uses less digits than its factorization.

55552870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57375.

The product of its (nonzero) digits is 70000, while the sum is 37.

The square root of 55552870 is about 7453.3797702787. The cubic root of 55552870 is about 381.5652656980.

The spelling of 55552870 in words is "fifty-five million, five hundred fifty-two thousand, eight hundred seventy".