55937617 has 2 divisors, whose sum is σ = 55937618. Its totient is φ = 55937616.

The previous prime is 55937603. The next prime is 55937621. The reversal of 55937617 is 71673955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51710481 + 4227136 = 7191^2 + 2056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55937617 is a prime.

It is not a weakly prime, because it can be changed into another prime (55937627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27968808 + 27968809.

It is an arithmetic number, because the mean of its divisors is an integer number (27968809).

Almost surely, 2^55937617 is an apocalyptic number.

It is an amenable number.

55937617 is a deficient number, since it is larger than the sum of its proper divisors (1).

55937617 is an equidigital number, since it uses as much as digits as its factorization.

55937617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 198450, while the sum is 43.

The square root of 55937617 is about 7479.1454725791. The cubic root of 55937617 is about 382.4441190241. Note that the first 3 decimals are identical.

The spelling of 55937617 in words is "fifty-five million, nine hundred thirty-seven thousand, six hundred seventeen".