55800670 has 16 divisors (see below), whose sum is σ = 102777840. Its totient is φ = 21801024.

The previous prime is 55800653. The next prime is 55800673. The reversal of 55800670 is 7600855.

It is a super-2 number, since 2×55800670² = 6227429544897800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55800673) 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, 64455 + ... + 65314.

It is an arithmetic number, because the mean of its divisors is an integer number (6423615).

Almost surely, 2^55800670 is an apocalyptic number.

55800670 is a deficient number, since it is larger than the sum of its proper divisors (46977170).

55800670 is a wasteful number, since it uses less digits than its factorization.

55800670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129819.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 55800670 is about 7469.9846050712. The cubic root of 55800670 is about 382.1317628845.

The spelling of 55800670 in words is "fifty-five million, eight hundred thousand, six hundred seventy".