25570515000 has 160 divisors (see below), whose sum is σ = 82043050320. Its totient is φ = 6634368000.

The previous prime is 25570514999. The next prime is 25570515011. The reversal of 25570515000 is 51507552.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 531964 + ... + 578036.

Almost surely, 2^25570515000 is an apocalyptic number.

25570515000 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 25570515000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41021525160).

25570515000 is an abundant number, since it is smaller than the sum of its proper divisors (56472535320).

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

25570515000 is a wasteful number, since it uses less digits than its factorization.

25570515000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46139 (or 46120 counting only the distinct ones).

The product of its (nonzero) digits is 8750, while the sum is 30.

The spelling of 25570515000 in words is "twenty-five billion, five hundred seventy million, five hundred fifteen thousand".