252747501 has 4 divisors (see below), whose sum is σ = 336996672. Its totient is φ = 168498332.

The previous prime is 252747497. The next prime is 252747503. The reversal of 252747501 is 105747252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252747501 - 2² = 252747497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252747503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42124581 + ... + 42124586.

It is an arithmetic number, because the mean of its divisors is an integer number (84249168).

Almost surely, 2^252747501 is an apocalyptic number.

It is an amenable number.

252747501 is a deficient number, since it is larger than the sum of its proper divisors (84249171).

252747501 is an equidigital number, since it uses as much as digits as its factorization.

252747501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84249170.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 252747501 is about 15898.0345011577. The cubic root of 252747501 is about 632.2598783354.

The spelling of 252747501 in words is "two hundred fifty-two million, seven hundred forty-seven thousand, five hundred one".