252745758 has 56 divisors (see below), whose sum is σ = 593210448. Its totient is φ = 80574912.

The previous prime is 252745751. The next prime is 252745789. The reversal of 252745758 is 857547252.

252745758 is a `hidden beast` number, since 2 + 5 + 2 + 74 + 575 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252745751) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 29766 + ... + 37302.

Almost surely, 2^252745758 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252745758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296605224).

252745758 is an abundant number, since it is smaller than the sum of its proper divisors (340464690).

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

252745758 is an equidigital number, since it uses as much as digits as its factorization.

252745758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580 (or 7565 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The square root of 252745758 is about 15897.9796829660. The cubic root of 252745758 is about 632.2584249330.

The spelling of 252745758 in words is "two hundred fifty-two million, seven hundred forty-five thousand, seven hundred fifty-eight".