55579597 has 2 divisors, whose sum is σ = 55579598. Its totient is φ = 55579596.

The previous prime is 55579583. The next prime is 55579609. The reversal of 55579597 is 79597555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38514436 + 17065161 = 6206^2 + 4131^2 .

It is a cyclic number.

It is not a de Polignac number, because 55579597 - 2²³ = 47190989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55579507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27789798 + 27789799.

It is an arithmetic number, because the mean of its divisors is an integer number (27789799).

Almost surely, 2^55579597 is an apocalyptic number.

It is an amenable number.

55579597 is a deficient number, since it is larger than the sum of its proper divisors (1).

55579597 is an equidigital number, since it uses as much as digits as its factorization.

55579597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2480625, while the sum is 52.

The square root of 55579597 is about 7455.1724996810. The cubic root of 55579597 is about 381.6264474145.

The spelling of 55579597 in words is "fifty-five million, five hundred seventy-nine thousand, five hundred ninety-seven".