25387473000 has 128 divisors (see below), whose sum is σ = 80894661120. Its totient is φ = 6625913600.

The previous prime is 25387472993. The next prime is 25387473017. The reversal of 25387473000 is 37478352.

It is a self number, because there is not a number n which added to its sum of digits gives 25387473000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50974 + ... + 231026.

It is an arithmetic number, because the mean of its divisors is an integer number (631989540).

Almost surely, 2^25387473000 is an apocalyptic number.

25387473000 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 25387473000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40447330560).

25387473000 is an abundant number, since it is smaller than the sum of its proper divisors (55507188120).

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

25387473000 is a wasteful number, since it uses less digits than its factorization.

25387473000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180124 (or 180110 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 25387473000 in words is "twenty-five billion, three hundred eighty-seven million, four hundred seventy-three thousand".