252747783 has 20 divisors (see below), whose sum is σ = 381038680. Its totient is φ = 166946832.

The previous prime is 252747779. The next prime is 252747791. The reversal of 252747783 is 387747252.

252747783 is a `hidden beast` number, since 2 + 527 + 47 + 7 + 83 = 666.

It is not a de Polignac number, because 252747783 - 2² = 252747779 is a prime.

It is a super-2 number, since 2×252747783² = 127762883622830178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252747763) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5485 + ... + 23142.

It is an arithmetic number, because the mean of its divisors is an integer number (19051934).

Almost surely, 2^252747783 is an apocalyptic number.

252747783 is a deficient number, since it is larger than the sum of its proper divisors (128290897).

252747783 is a wasteful number, since it uses less digits than its factorization.

252747783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28748 (or 28739 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 252747783 is about 15898.0433701761. The cubic root of 252747783 is about 632.2601134808.

The spelling of 252747783 in words is "two hundred fifty-two million, seven hundred forty-seven thousand, seven hundred eighty-three".