252737845 has 4 divisors (see below), whose sum is σ = 303285420. Its totient is φ = 202190272.

The previous prime is 252737809. The next prime is 252737873. The reversal of 252737845 is 548737252.

252737845 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.

It can be written as a sum of positive squares in 2 ways, for example, as 33016516 + 219721329 = 5746^2 + 14823^2 .

It is a cyclic number.

It is not a de Polignac number, because 252737845 - 2⁷ = 252737717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25273780 + ... + 25273789.

It is an arithmetic number, because the mean of its divisors is an integer number (75821355).

Almost surely, 2^252737845 is an apocalyptic number.

It is an amenable number.

252737845 is a deficient number, since it is larger than the sum of its proper divisors (50547575).

252737845 is an equidigital number, since it uses as much as digits as its factorization.

252737845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50547574.

The product of its digits is 470400, while the sum is 43.

The square root of 252737845 is about 15897.7308129179. The cubic root of 252737845 is about 632.2518265854.

The spelling of 252737845 in words is "two hundred fifty-two million, seven hundred thirty-seven thousand, eight hundred forty-five".