55580765 has 16 divisors (see below), whose sum is σ = 69811200. Its totient is φ = 42400512.

The previous prime is 55580761. The next prime is 55580807. The reversal of 55580765 is 56708555.

It is a cyclic number.

It is not a de Polignac number, because 55580765 - 2² = 55580761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55580761) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 54581 + ... + 55589.

It is an arithmetic number, because the mean of its divisors is an integer number (4363200).

Almost surely, 2^55580765 is an apocalyptic number.

It is an amenable number.

55580765 is a deficient number, since it is larger than the sum of its proper divisors (14230435).

55580765 is a wasteful number, since it uses less digits than its factorization.

55580765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516.

The product of its (nonzero) digits is 210000, while the sum is 41.

The square root of 55580765 is about 7455.2508341437. The cubic root of 55580765 is about 381.6291206770.

The spelling of 55580765 in words is "fifty-five million, five hundred eighty thousand, seven hundred sixty-five".