252425974 has 4 divisors (see below), whose sum is σ = 378638964. Its totient is φ = 126212986.

The previous prime is 252425969. The next prime is 252425993. The reversal of 252425974 is 479524252.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63106492 + ... + 63106495.

It is an arithmetic number, because the mean of its divisors is an integer number (94659741).

Almost surely, 2^252425974 is an apocalyptic number.

252425974 is a deficient number, since it is larger than the sum of its proper divisors (126212990).

252425974 is a wasteful number, since it uses less digits than its factorization.

252425974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126212989.

The product of its digits is 201600, while the sum is 40.

The square root of 252425974 is about 15887.9191211436. The cubic root of 252425974 is about 631.9916595465.

The spelling of 252425974 in words is "two hundred fifty-two million, four hundred twenty-five thousand, nine hundred seventy-four".