25011970500 has 288 divisors, whose sum is σ = 84283355520. Its totient is φ = 5743584000.

The previous prime is 25011970453. The next prime is 25011970513. The reversal of 25011970500 is 507911052.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3444874 + ... + 3452126.

It is an arithmetic number, because the mean of its divisors is an integer number (292650540).

Almost surely, 2^25011970500 is an apocalyptic number.

25011970500 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 25011970500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42141677760).

25011970500 is an abundant number, since it is smaller than the sum of its proper divisors (59271385020).

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

25011970500 is a wasteful number, since it uses less digits than its factorization.

25011970500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316 (or 7293 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 30.

The spelling of 25011970500 in words is "twenty-five billion, eleven million, nine hundred seventy thousand, five hundred".