252780599 has 4 divisors (see below), whose sum is σ = 267650064. Its totient is φ = 237911136.

The previous prime is 252780589. The next prime is 252780607. The reversal of 252780599 is 995087252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252780599 - 2¹⁶ = 252715063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252780529) 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, 7434707 + ... + 7434740.

It is an arithmetic number, because the mean of its divisors is an integer number (66912516).

Almost surely, 2^252780599 is an apocalyptic number.

252780599 is a deficient number, since it is larger than the sum of its proper divisors (14869465).

252780599 is a wasteful number, since it uses less digits than its factorization.

252780599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14869464.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 252780599 is about 15899.0754133692. The cubic root of 252780599 is about 632.2874758705.

The spelling of 252780599 in words is "two hundred fifty-two million, seven hundred eighty thousand, five hundred ninety-nine".