55649655 has 12 divisors (see below), whose sum is σ = 96459480. Its totient is φ = 29679792.

The previous prime is 55649641. The next prime is 55649663. The reversal of 55649655 is 55694655.

55649655 is a `hidden beast` number, since 556 + 4 + 96 + 5 + 5 = 666.

It is not a de Polignac number, because 55649655 - 2⁴ = 55649639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1236659 = 55649655 / (5 + 5 + 6 + 4 + 9 + 6 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 55649655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618285 + ... + 618374.

It is an arithmetic number, because the mean of its divisors is an integer number (8038290).

Almost surely, 2^55649655 is an apocalyptic number.

55649655 is a deficient number, since it is larger than the sum of its proper divisors (40809825).

55649655 is a wasteful number, since it uses less digits than its factorization.

55649655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236670 (or 1236667 counting only the distinct ones).

The product of its digits is 810000, while the sum is 45.

The square root of 55649655 is about 7459.8696369307. The cubic root of 55649655 is about 381.7867266140.

The spelling of 55649655 in words is "fifty-five million, six hundred forty-nine thousand, six hundred fifty-five".