25134222000 has 160 divisors (see below), whose sum is σ = 81116665344. Its totient is φ = 6695520000.

The previous prime is 25134221993. The next prime is 25134222023. The reversal of 25134222000 is 22243152.

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, 8704557 + ... + 8707443.

Almost surely, 2^25134222000 is an apocalyptic number.

25134222000 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 25134222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40558332672).

25134222000 is an abundant number, since it is smaller than the sum of its proper divisors (55982443344).

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

25134222000 is a wasteful number, since it uses less digits than its factorization.

25134222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364 (or 4348 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 25134222000 its reverse (22243152), we get a palindrome (25156465152).

The spelling of 25134222000 in words is "twenty-five billion, one hundred thirty-four million, two hundred twenty-two thousand".