25852167880 has 384 divisors, whose sum is σ = 77027811840. Its totient is φ = 7633612800.

The previous prime is 25852167871. The next prime is 25852167881. The reversal of 25852167880 is 8876125852.

It is not an unprimeable number, because it can be changed into a prime (25852167881) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51395709 + ... + 51396211.

It is an arithmetic number, because the mean of its divisors is an integer number (200593260).

Almost surely, 2^25852167880 is an apocalyptic number.

25852167880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25852167880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38513905920).

25852167880 is an abundant number, since it is smaller than the sum of its proper divisors (51175643960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25852167880 is a wasteful number, since it uses less digits than its factorization.

25852167880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 52.

The spelling of 25852167880 in words is "twenty-five billion, eight hundred fifty-two million, one hundred sixty-seven thousand, eight hundred eighty".