252758949 has 4 divisors (see below), whose sum is σ = 337011936. Its totient is φ = 168505964.

The previous prime is 252758939. The next prime is 252758953. The reversal of 252758949 is 949857252.

252758949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 252758949 - 2⁹ = 252758437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252758939) 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, 42126489 + ... + 42126494.

It is an arithmetic number, because the mean of its divisors is an integer number (84252984).

Almost surely, 2^252758949 is an apocalyptic number.

It is an amenable number.

252758949 is a deficient number, since it is larger than the sum of its proper divisors (84252987).

252758949 is an equidigital number, since it uses as much as digits as its factorization.

252758949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84252986.

The product of its digits is 1814400, while the sum is 51.

The square root of 252758949 is about 15898.3945415882. The cubic root of 252758949 is about 632.2694240966.

The spelling of 252758949 in words is "two hundred fifty-two million, seven hundred fifty-eight thousand, nine hundred forty-nine".