55523717 has 16 divisors (see below), whose sum is σ = 61880112. Its totient is φ = 49582080.

The previous prime is 55523687. The next prime is 55523729. The reversal of 55523717 is 71732555.

It can be written as a sum of positive squares in 8 ways, for example, as 1442401 + 54081316 = 1201^2 + 7354^2 .

It is a cyclic number.

It is not a de Polignac number, because 55523717 - 2⁶ = 55523653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55523737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24713 + ... + 26865.

It is an arithmetic number, because the mean of its divisors is an integer number (3867507).

Almost surely, 2^55523717 is an apocalyptic number.

It is an amenable number.

55523717 is a deficient number, since it is larger than the sum of its proper divisors (6356395).

55523717 is a wasteful number, since it uses less digits than its factorization.

55523717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248.

The product of its digits is 36750, while the sum is 35.

The square root of 55523717 is about 7451.4238236729. The cubic root of 55523717 is about 381.4985081593.

The spelling of 55523717 in words is "fifty-five million, five hundred twenty-three thousand, seven hundred seventeen".