252780783 has 4 divisors (see below), whose sum is σ = 337041048. Its totient is φ = 168520520.

The previous prime is 252780779. The next prime is 252780809. The reversal of 252780783 is 387087252.

252780783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 252780783 - 2² = 252780779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252780683) 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, 42130128 + ... + 42130133.

It is an arithmetic number, because the mean of its divisors is an integer number (84260262).

Almost surely, 2^252780783 is an apocalyptic number.

252780783 is a deficient number, since it is larger than the sum of its proper divisors (84260265).

252780783 is an equidigital number, since it uses as much as digits as its factorization.

252780783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84260264.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 252780783 is about 15899.0811998681. The cubic root of 252780783 is about 632.2876292853.

The spelling of 252780783 in words is "two hundred fifty-two million, seven hundred eighty thousand, seven hundred eighty-three".