55769565 has 8 divisors (see below), whose sum is σ = 89231328. Its totient is φ = 29743760.

The previous prime is 55769563. The next prime is 55769599. The reversal of 55769565 is 56596755.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55769565 - 2¹ = 55769563 is a prime.

It is a super-2 number, since 2×55769565² = 6220488760578450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55769561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1858971 + ... + 1859000.

It is an arithmetic number, because the mean of its divisors is an integer number (11153916).

Almost surely, 2^55769565 is an apocalyptic number.

It is an amenable number.

55769565 is a deficient number, since it is larger than the sum of its proper divisors (33461763).

55769565 is a wasteful number, since it uses less digits than its factorization.

55769565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717979.

The product of its digits is 1417500, while the sum is 48.

The square root of 55769565 is about 7467.9023159117. The cubic root of 55769565 is about 382.0607457101.

The spelling of 55769565 in words is "fifty-five million, seven hundred sixty-nine thousand, five hundred sixty-five".