25153157220 has 288 divisors, whose sum is σ = 77606968320. Its totient is φ = 6068805120.

The previous prime is 25153157147. The next prime is 25153157233. The reversal of 25153157220 is 2275135152.

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, 110806747 + ... + 110806973.

It is an arithmetic number, because the mean of its divisors is an integer number (269468640).

Almost surely, 2^25153157220 is an apocalyptic number.

25153157220 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 25153157220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38803484160).

25153157220 is an abundant number, since it is smaller than the sum of its proper divisors (52453811100).

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

25153157220 is a wasteful number, since it uses less digits than its factorization.

25153157220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The spelling of 25153157220 in words is "twenty-five billion, one hundred fifty-three million, one hundred fifty-seven thousand, two hundred twenty".