25142520000 has 560 divisors, whose sum is σ = 91182212352. Its totient is φ = 6074880000.

The previous prime is 25142519993. The next prime is 25142520049. The reversal of 25142520000 is 2524152.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 110759887 + ... + 110760113.

Almost surely, 2^25142520000 is an apocalyptic number.

25142520000 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 25142520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45591106176).

25142520000 is an abundant number, since it is smaller than the sum of its proper divisors (66039692352).

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

25142520000 is a wasteful number, since it uses less digits than its factorization.

25142520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The spelling of 25142520000 in words is "twenty-five billion, one hundred forty-two million, five hundred twenty thousand".