55012597 has 4 divisors (see below), whose sum is σ = 55316716. Its totient is φ = 54708480.

The previous prime is 55012589. The next prime is 55012613. The reversal of 55012597 is 79521055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17631601 + 37380996 = 4199^2 + 6114^2 .

It is a cyclic number.

It is not a de Polignac number, because 55012597 - 2³ = 55012589 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 (55012537) 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, 151788 + ... + 152149.

It is an arithmetic number, because the mean of its divisors is an integer number (13829179).

Almost surely, 2^55012597 is an apocalyptic number.

It is an amenable number.

55012597 is a deficient number, since it is larger than the sum of its proper divisors (304119).

55012597 is a wasteful number, since it uses less digits than its factorization.

55012597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304118.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 55012597 is about 7417.0477280384. The cubic root of 55012597 is about 380.3242776732.

The spelling of 55012597 in words is "fifty-five million, twelve thousand, five hundred ninety-seven".