55677725565 has 32 divisors (see below), whose sum is σ = 111066218496. Its totient is φ = 23138794560.

The previous prime is 55677725563. The next prime is 55677725567. The reversal of 55677725565 is 56552777655.

It is an interprime number because it is at equal distance from previous prime (55677725563) and next prime (55677725567).

It is not a de Polignac number, because 55677725565 - 2¹ = 55677725563 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55677725499 and 55677725508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55677725563) 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 31 ways as a sum of consecutive naturals, for example, 24101757 + ... + 24104066.

It is an arithmetic number, because the mean of its divisors is an integer number (3470819328).

Almost surely, 2^55677725565 is an apocalyptic number.

55677725565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55677725565 is a deficient number, since it is larger than the sum of its proper divisors (55388492931).

55677725565 is a wasteful number, since it uses less digits than its factorization.

55677725565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48205849.

The product of its digits is 77175000, while the sum is 60.

The spelling of 55677725565 in words is "fifty-five billion, six hundred seventy-seven million, seven hundred twenty-five thousand, five hundred sixty-five".