252506550 has 48 divisors (see below), whose sum is σ = 627192000. Its totient is φ = 67230240.

The previous prime is 252506549. The next prime is 252506557. The reversal of 252506550 is 55605252.

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 (252506557) 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, 167701 + ... + 169199.

It is an arithmetic number, because the mean of its divisors is an integer number (13066500).

Almost surely, 2^252506550 is an apocalyptic number.

252506550 is an abundant number, since it is smaller than the sum of its proper divisors (374685450).

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

252506550 is a wasteful number, since it uses less digits than its factorization.

252506550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637 (or 2632 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 252506550 is about 15890.4546819781. The cubic root of 252506550 is about 632.0588976649.

The spelling of 252506550 in words is "two hundred fifty-two million, five hundred six thousand, five hundred fifty".