55636417 has 4 divisors (see below), whose sum is σ = 55653376. Its totient is φ = 55619460.

The previous prime is 55636411. The next prime is 55636421. The reversal of 55636417 is 71463655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55636417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55636411) 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, 1809 + ... + 10702.

It is an arithmetic number, because the mean of its divisors is an integer number (13913344).

Almost surely, 2^55636417 is an apocalyptic number.

It is an amenable number.

55636417 is a deficient number, since it is larger than the sum of its proper divisors (16959).

55636417 is a wasteful number, since it uses less digits than its factorization.

55636417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16958.

The product of its digits is 75600, while the sum is 37.

The square root of 55636417 is about 7458.9823032368. The cubic root of 55636417 is about 381.7564509337.

The spelling of 55636417 in words is "fifty-five million, six hundred thirty-six thousand, four hundred seventeen".