252755778 has 16 divisors (see below), whose sum is σ = 551467296. Its totient is φ = 76592640.

The previous prime is 252755777. The next prime is 252755791. The reversal of 252755778 is 877557252.

252755778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (252755777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914751 + ... + 1914882.

It is an arithmetic number, because the mean of its divisors is an integer number (34466706).

Almost surely, 2^252755778 is an apocalyptic number.

252755778 is an abundant number, since it is smaller than the sum of its proper divisors (298711518).

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

252755778 is a wasteful number, since it uses less digits than its factorization.

252755778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829649.

The product of its digits is 1372000, while the sum is 48.

The square root of 252755778 is about 15898.2948142246. The cubic root of 252755778 is about 632.2667800297.

The spelling of 252755778 in words is "two hundred fifty-two million, seven hundred fifty-five thousand, seven hundred seventy-eight".