55374565 has 4 divisors (see below), whose sum is σ = 66449484. Its totient is φ = 44299648.

The previous prime is 55374521. The next prime is 55374581. The reversal of 55374565 is 56547355.

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 20493729 + 34880836 = 4527^2 + 5906^2 .

It is a cyclic number.

It is not a de Polignac number, because 55374565 - 2²³ = 46985957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5537452 + ... + 5537461.

It is an arithmetic number, because the mean of its divisors is an integer number (16612371).

Almost surely, 2^55374565 is an apocalyptic number.

It is an amenable number.

55374565 is a deficient number, since it is larger than the sum of its proper divisors (11074919).

55374565 is a wasteful number, since it uses less digits than its factorization.

55374565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11074918.

The product of its digits is 315000, while the sum is 40.

The square root of 55374565 is about 7441.4088047896. The cubic root of 55374565 is about 381.1565984580.

The spelling of 55374565 in words is "fifty-five million, three hundred seventy-four thousand, five hundred sixty-five".