252985493249 has 4 divisors (see below), whose sum is σ = 253019417520. Its totient is φ = 252951568980.

The previous prime is 252985493227. The next prime is 252985493261. The reversal of 252985493249 is 942394589252.

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 252985493249 - 2³² = 248690525953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252985493191 and 252985493200.

It is not an unprimeable number, because it can be changed into a prime (252985493219) 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, 16950947 + ... + 16965864.

It is an arithmetic number, because the mean of its divisors is an integer number (63254854380).

Almost surely, 2^252985493249 is an apocalyptic number.

It is an amenable number.

252985493249 is a deficient number, since it is larger than the sum of its proper divisors (33924271).

252985493249 is an equidigital number, since it uses as much as digits as its factorization.

252985493249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33924270.

The product of its digits is 55987200, while the sum is 62.

The spelling of 252985493249 in words is "two hundred fifty-two billion, nine hundred eighty-five million, four hundred ninety-three thousand, two hundred forty-nine".