55552617 has 24 divisors (see below), whose sum is σ = 85329504. Its totient is φ = 34706304.

The previous prime is 55552591. The next prime is 55552649. The reversal of 55552617 is 71625555.

It is a happy number.

It is not a de Polignac number, because 55552617 - 2⁸ = 55552361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55552687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42658 + ... + 43940.

It is an arithmetic number, because the mean of its divisors is an integer number (3555396).

Almost surely, 2^55552617 is an apocalyptic number.

It is an amenable number.

55552617 is a deficient number, since it is larger than the sum of its proper divisors (29776887).

55552617 is a wasteful number, since it uses less digits than its factorization.

55552617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1586 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 55552617 is about 7453.3627980932. The cubic root of 55552617 is about 381.5646864530.

It can be divided in two parts, 55552 and 617, that added together give a square (56169 = 237²).

The spelling of 55552617 in words is "fifty-five million, five hundred fifty-two thousand, six hundred seventeen".