252500478 has 16 divisors (see below), whose sum is σ = 507015936. Its totient is φ = 83831000.

The previous prime is 252500459. The next prime is 252500489. The reversal of 252500478 is 874005252.

It is a Curzon number.

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, 82326 + ... + 85337.

It is an arithmetic number, because the mean of its divisors is an integer number (31688496).

Almost surely, 2^252500478 is an apocalyptic number.

252500478 is an abundant number, since it is smaller than the sum of its proper divisors (254515458).

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

252500478 is a wasteful number, since it uses less digits than its factorization.

252500478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167919.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 252500478 is about 15890.2636227345. The cubic root of 252500478 is about 632.0538312717.

The spelling of 252500478 in words is "two hundred fifty-two million, five hundred thousand, four hundred seventy-eight".