55617413 has 4 divisors (see below), whose sum is σ = 55635180. Its totient is φ = 55599648.

The previous prime is 55617409. The next prime is 55617433. The reversal of 55617413 is 31471655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39150049 + 16467364 = 6257^2 + 4058^2 .

It is a cyclic number.

It is not a de Polignac number, because 55617413 - 2² = 55617409 is a prime.

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 55617413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55617433) 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, 2798 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (13908795).

Almost surely, 2^55617413 is an apocalyptic number.

It is an amenable number.

55617413 is a deficient number, since it is larger than the sum of its proper divisors (17767).

55617413 is a wasteful number, since it uses less digits than its factorization.

55617413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17766.

The product of its digits is 12600, while the sum is 32.

The square root of 55617413 is about 7457.7082941075. The cubic root of 55617413 is about 381.7129798514.

The spelling of 55617413 in words is "fifty-five million, six hundred seventeen thousand, four hundred thirteen".