557453745 has 20 divisors (see below), whose sum is σ = 999288180. Its totient is φ = 297308448.

The previous prime is 557453719. The next prime is 557453761. The reversal of 557453745 is 547354755.

It is a happy number.

557453745 is a `hidden beast` number, since 5 + 5 + 74 + 537 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 87778161 + 469675584 = 9369^2 + 21672^2 .

It is not a de Polignac number, because 557453745 - 2⁵ = 557453713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 557453745.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 687810 + ... + 688619.

It is an arithmetic number, because the mean of its divisors is an integer number (49964409).

Almost surely, 2^557453745 is an apocalyptic number.

It is an amenable number.

557453745 is a deficient number, since it is larger than the sum of its proper divisors (441834435).

557453745 is a wasteful number, since it uses less digits than its factorization.

557453745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376446 (or 1376437 counting only the distinct ones).

The product of its digits is 1470000, while the sum is 45.

The square root of 557453745 is about 23610.4583818273. The cubic root of 557453745 is about 823.0058946805.

It can be divided in two parts, 5574 and 53745, that added together give a cube (59319 = 39³).

The spelling of 557453745 in words is "five hundred fifty-seven million, four hundred fifty-three thousand, seven hundred forty-five".