55580655 has 32 divisors (see below), whose sum is σ = 97413120. Its totient is φ = 26893440.

The previous prime is 55580653. The next prime is 55580663. The reversal of 55580655 is 55608555.

It is not a de Polignac number, because 55580655 - 2¹ = 55580653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55580653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9090 + ... + 13920.

It is an arithmetic number, because the mean of its divisors is an integer number (3044160).

Almost surely, 2^55580655 is an apocalyptic number.

55580655 is a deficient number, since it is larger than the sum of its proper divisors (41832465).

55580655 is a wasteful number, since it uses less digits than its factorization.

55580655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911.

The product of its (nonzero) digits is 150000, while the sum is 39.

The square root of 55580655 is about 7455.2434567893. The cubic root of 55580655 is about 381.6288689159.

The spelling of 55580655 in words is "fifty-five million, five hundred eighty thousand, six hundred fifty-five".