572618385 has 12 divisors (see below), whose sum is σ = 992538612. Its totient is φ = 305396448.

The previous prime is 572618377. The next prime is 572618399. The reversal of 572618385 is 583816275.

572618385 is a `hidden beast` number, since 5 + 7 + 261 + 8 + 385 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 71216721 + 501401664 = 8439^2 + 22392^2 .

It is not a de Polignac number, because 572618385 - 2³ = 572618377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 12724853 = 572618385 / (5 + 7 + 2 + 6 + 1 + 8 + 3 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 572618385.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6362382 + ... + 6362471.

It is an arithmetic number, because the mean of its divisors is an integer number (82711551).

Almost surely, 2^572618385 is an apocalyptic number.

It is an amenable number.

572618385 is a deficient number, since it is larger than the sum of its proper divisors (419920227).

572618385 is a wasteful number, since it uses less digits than its factorization.

572618385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12724864 (or 12724861 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 572618385 is about 23929.4459818860. The cubic root of 572618385 is about 830.4020817619.

The spelling of 572618385 in words is "five hundred seventy-two million, six hundred eighteen thousand, three hundred eighty-five".