55658700 has 54 divisors (see below), whose sum is σ = 174461924. Its totient is φ = 14842080.

The previous prime is 55658683. The next prime is 55658711. The reversal of 55658700 is 785655.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30022 + ... + 31821.

Almost surely, 2^55658700 is an apocalyptic number.

55658700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55658700 is an abundant number, since it is smaller than the sum of its proper divisors (118803224).

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

55658700 is a wasteful number, since it uses less digits than its factorization.

55658700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61863 (or 61853 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 55658700 is about 7460.4758561368. The cubic root of 55658700 is about 381.8074100239.

The spelling of 55658700 in words is "fifty-five million, six hundred fifty-eight thousand, seven hundred".