25150500000 has 672 divisors, whose sum is σ = 96861260160. Its totient is φ = 6415200000.

The previous prime is 25150499963. The next prime is 25150500047. The reversal of 25150500000 is 505152.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1093499989 + ... + 1093500011.

It is an arithmetic number, because the mean of its divisors is an integer number (144138780).

Almost surely, 2^25150500000 is an apocalyptic number.

25150500000 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 25150500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48430630080).

25150500000 is an abundant number, since it is smaller than the sum of its proper divisors (71710760160).

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

25150500000 is an frugal number, since it uses more digits than its factorization.

25150500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The spelling of 25150500000 in words is "twenty-five billion, one hundred fifty million, five hundred thousand".