55589669 has 4 divisors (see below), whose sum is σ = 56882496. Its totient is φ = 54296844.

The previous prime is 55589659. The next prime is 55589671. The reversal of 55589669 is 96698555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55589669 - 2²⁴ = 38812453 is a prime.

It is a super-2 number, since 2×55589669² = 6180422599059122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55589669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55589629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646349 + ... + 646434.

It is an arithmetic number, because the mean of its divisors is an integer number (14220624).

Almost surely, 2^55589669 is an apocalyptic number.

It is an amenable number.

55589669 is a deficient number, since it is larger than the sum of its proper divisors (1292827).

55589669 is a wasteful number, since it uses less digits than its factorization.

55589669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292826.

The product of its digits is 2916000, while the sum is 53.

The square root of 55589669 is about 7455.8479732355. The cubic root of 55589669 is about 381.6494984957.

The spelling of 55589669 in words is "fifty-five million, five hundred eighty-nine thousand, six hundred sixty-nine".