25504505152 has 112 divisors (see below), whose sum is σ = 58996730368. Its totient is φ = 10713669120.

The previous prime is 25504505129. The next prime is 25504505183. The reversal of 25504505152 is 25150540552.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6331363 + ... + 6335389.

Almost surely, 2^25504505152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25504505152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29498365184).

25504505152 is an abundant number, since it is smaller than the sum of its proper divisors (33492225216).

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

25504505152 is a wasteful number, since it uses less digits than its factorization.

25504505152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 34.

The spelling of 25504505152 in words is "twenty-five billion, five hundred four million, five hundred five thousand, one hundred fifty-two".