572778785 has 16 divisors (see below), whose sum is σ = 721543680. Its totient is φ = 435918720.

The previous prime is 572778781. The next prime is 572778793. The reversal of 572778785 is 587877275.

It is not a de Polignac number, because 572778785 - 2² = 572778781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 572778785.

It is not an unprimeable number, because it can be changed into a prime (572778781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22172 + ... + 40461.

It is an arithmetic number, because the mean of its divisors is an integer number (45096480).

Almost surely, 2^572778785 is an apocalyptic number.

It is an amenable number.

572778785 is a deficient number, since it is larger than the sum of its proper divisors (148764895).

572778785 is a wasteful number, since it uses less digits than its factorization.

572778785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62728.

The product of its digits is 7683200, while the sum is 56.

The square root of 572778785 is about 23932.7972665127. The cubic root of 572778785 is about 830.4796110336.

The spelling of 572778785 in words is "five hundred seventy-two million, seven hundred seventy-eight thousand, seven hundred eighty-five".