252425550 has 48 divisors (see below), whose sum is σ = 674175600. Its totient is φ = 62135040.

The previous prime is 252425521. The next prime is 252425557. The reversal of 252425550 is 55524252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252425557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62775 + ... + 66674.

It is an arithmetic number, because the mean of its divisors is an integer number (14045325).

Almost surely, 2^252425550 is an apocalyptic number.

252425550 is an abundant number, since it is smaller than the sum of its proper divisors (421750050).

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

252425550 is a wasteful number, since it uses less digits than its factorization.

252425550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129477 (or 129472 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 252425550 is about 15887.9057776662. The cubic root of 252425550 is about 631.9913056941.

The spelling of 252425550 in words is "two hundred fifty-two million, four hundred twenty-five thousand, five hundred fifty".