252587450 has 12 divisors (see below), whose sum is σ = 469812750. Its totient is φ = 101034960.

The previous prime is 252587443. The next prime is 252587471. The reversal of 252587450 is 54785252.

It is a Cunningham number, because it is equal to 15893²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 232776049 + 19811401 = 15257^2 + 4451^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2525825 + ... + 2525924.

Almost surely, 2^252587450 is an apocalyptic number.

252587450 is a deficient number, since it is larger than the sum of its proper divisors (217225300).

252587450 is a wasteful number, since it uses less digits than its factorization.

252587450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051761 (or 5051756 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 38.

The square root of 252587450 is about 15893.0000314604. Note that the first 4 decimals coincide. The cubic root of 252587450 is about 632.1263917621.

The spelling of 252587450 in words is "two hundred fifty-two million, five hundred eighty-seven thousand, four hundred fifty".