55612565 has 8 divisors (see below), whose sum is σ = 66913440. Its totient is φ = 44371152.

The previous prime is 55612553. The next prime is 55612567. The reversal of 55612565 is 56521655.

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

It is a cyclic number.

It is not a de Polignac number, because 55612565 - 2⁴ = 55612549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55612567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12779 + ... + 16568.

It is an arithmetic number, because the mean of its divisors is an integer number (8364180).

Almost surely, 2^55612565 is an apocalyptic number.

It is an amenable number.

55612565 is a deficient number, since it is larger than the sum of its proper divisors (11300875).

55612565 is a wasteful number, since it uses less digits than its factorization.

55612565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29731.

The product of its digits is 45000, while the sum is 35.

The square root of 55612565 is about 7457.3832541985. The cubic root of 55612565 is about 381.7018886110.

The spelling of 55612565 in words is "fifty-five million, six hundred twelve thousand, five hundred sixty-five".