252078356 has 24 divisors (see below), whose sum is σ = 446210856. Its totient is φ = 124597760.

The previous prime is 252078347. The next prime is 252078371. The reversal of 252078356 is 653870252.

It can be written as a sum of positive squares in 4 ways, for example, as 12138256 + 239940100 = 3484^2 + 15490^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153170 + ... + 154806.

It is an arithmetic number, because the mean of its divisors is an integer number (18592119).

Almost surely, 2^252078356 is an apocalyptic number.

It is an amenable number.

252078356 is a deficient number, since it is larger than the sum of its proper divisors (194132500).

252078356 is a wasteful number, since it uses less digits than its factorization.

252078356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059 (or 2057 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 252078356 is about 15876.9756565915. The cubic root of 252078356 is about 631.7014192081.

The spelling of 252078356 in words is "two hundred fifty-two million, seventy-eight thousand, three hundred fifty-six".