55625597 has 4 divisors (see below), whose sum is σ = 58553280. Its totient is φ = 52697916.

The previous prime is 55625593. The next prime is 55625629. The reversal of 55625597 is 79552655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55625597 - 2² = 55625593 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 (55625593) 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, 1463813 + ... + 1463850.

It is an arithmetic number, because the mean of its divisors is an integer number (14638320).

Almost surely, 2^55625597 is an apocalyptic number.

It is an amenable number.

55625597 is a deficient number, since it is larger than the sum of its proper divisors (2927683).

55625597 is a wasteful number, since it uses less digits than its factorization.

55625597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927682.

The product of its digits is 472500, while the sum is 44.

The square root of 55625597 is about 7458.2569679517. The cubic root of 55625597 is about 381.7317017207.

The spelling of 55625597 in words is "fifty-five million, six hundred twenty-five thousand, five hundred ninety-seven".