252555650 has 12 divisors (see below), whose sum is σ = 469753602. Its totient is φ = 101022240.

The previous prime is 252555649. The next prime is 252555683. The reversal of 252555650 is 56555252.

It can be written as a sum of positive squares in 3 ways, for example, as 200873929 + 51681721 = 14173^2 + 7189^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 252555650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2525507 + ... + 2525606.

Almost surely, 2^252555650 is an apocalyptic number.

252555650 is a deficient number, since it is larger than the sum of its proper divisors (217197952).

252555650 is a wasteful number, since it uses less digits than its factorization.

252555650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051125 (or 5051120 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The square root of 252555650 is about 15891.9995595268. Note that the first 3 decimals coincide. The cubic root of 252555650 is about 632.0998630452.

The spelling of 252555650 in words is "two hundred fifty-two million, five hundred fifty-five thousand, six hundred fifty".