55574857 has 4 divisors (see below), whose sum is σ = 59849860. Its totient is φ = 51299856.

The previous prime is 55574833. The next prime is 55574863. The reversal of 55574857 is 75847555.

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 37222201 + 18352656 = 6101^2 + 4284^2 .

It is a cyclic number.

It is not a de Polignac number, because 55574857 - 2¹¹ = 55572809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55574807) 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, 2137482 + ... + 2137507.

It is an arithmetic number, because the mean of its divisors is an integer number (14962465).

Almost surely, 2^55574857 is an apocalyptic number.

It is an amenable number.

55574857 is a deficient number, since it is larger than the sum of its proper divisors (4275003).

55574857 is a wasteful number, since it uses less digits than its factorization.

55574857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275002.

The product of its digits is 980000, while the sum is 46.

The square root of 55574857 is about 7454.8545928140. The cubic root of 55574857 is about 381.6155983446.

The spelling of 55574857 in words is "fifty-five million, five hundred seventy-four thousand, eight hundred fifty-seven".