252939845 has 4 divisors (see below), whose sum is σ = 303527820. Its totient is φ = 202351872.

The previous prime is 252939839. The next prime is 252939851. The reversal of 252939845 is 548939252.

252939845 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 is an interprime number because it is at equal distance from previous prime (252939839) and next prime (252939851).

It can be written as a sum of positive squares in 2 ways, for example, as 38551681 + 214388164 = 6209^2 + 14642^2 .

It is a cyclic number.

It is not a de Polignac number, because 252939845 - 2⁶ = 252939781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252939845.

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, 25293980 + ... + 25293989.

It is an arithmetic number, because the mean of its divisors is an integer number (75881955).

Almost surely, 2^252939845 is an apocalyptic number.

It is an amenable number.

252939845 is a deficient number, since it is larger than the sum of its proper divisors (50587975).

252939845 is an equidigital number, since it uses as much as digits as its factorization.

252939845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50587974.

The product of its digits is 777600, while the sum is 47.

The square root of 252939845 is about 15904.0826519482. The cubic root of 252939845 is about 632.4202235513.

The spelling of 252939845 in words is "two hundred fifty-two million, nine hundred thirty-nine thousand, eight hundred forty-five".