252772780 has 48 divisors (see below), whose sum is σ = 579749184. Its totient is φ = 92010240.

The previous prime is 252772777. The next prime is 252772781. The reversal of 252772780 is 87277252.

It is not an unprimeable number, because it can be changed into a prime (252772781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11614 + ... + 25306.

It is an arithmetic number, because the mean of its divisors is an integer number (12078108).

Almost surely, 2^252772780 is an apocalyptic number.

252772780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252772780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289874592).

252772780 is an abundant number, since it is smaller than the sum of its proper divisors (326976404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252772780 is a wasteful number, since it uses less digits than its factorization.

252772780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13786 (or 13784 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 252772780 is about 15898.8295166657. The cubic root of 252772780 is about 632.2809565058.

The spelling of 252772780 in words is "two hundred fifty-two million, seven hundred seventy-two thousand, seven hundred eighty".