55001477565 has 24 divisors (see below), whose sum is σ = 96542684160. Its totient is φ = 28962801504.

The previous prime is 55001477549. The next prime is 55001477569. The reversal of 55001477565 is 56577410055.

55001477565 is a `hidden beast` number, since 5 + 5 + 0 + 0 + 14 + 77 + 565 = 666.

It is not a de Polignac number, because 55001477565 - 2⁴ = 55001477549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55001477565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55001477569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7732237 + ... + 7739346.

It is an arithmetic number, because the mean of its divisors is an integer number (4022611840).

Almost surely, 2^55001477565 is an apocalyptic number.

It is an amenable number.

55001477565 is a deficient number, since it is larger than the sum of its proper divisors (41541206595).

55001477565 is a wasteful number, since it uses less digits than its factorization.

55001477565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15471673 (or 15471670 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 45.

The spelling of 55001477565 in words is "fifty-five billion, one million, four hundred seventy-seven thousand, five hundred sixty-five".