252825009871 has 24 divisors (see below), whose sum is σ = 295668099936. Its totient is φ = 215555719680.

The previous prime is 252825009847. The next prime is 252825009923. The reversal of 252825009871 is 178900528252.

It is not a de Polignac number, because 252825009871 - 2⁵ = 252825009839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252825009271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10462515 + ... + 10486651.

It is an arithmetic number, because the mean of its divisors is an integer number (12319504164).

Almost surely, 2^252825009871 is an apocalyptic number.

252825009871 is a deficient number, since it is larger than the sum of its proper divisors (42843090065).

252825009871 is a wasteful number, since it uses less digits than its factorization.

252825009871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25279 (or 25272 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 252825009871 in words is "two hundred fifty-two billion, eight hundred twenty-five million, nine thousand, eight hundred seventy-one".