25113265320 has 256 divisors, whose sum is σ = 88693678080. Its totient is φ = 5608166400.

The previous prime is 25113265319. The next prime is 25113265321. The reversal of 25113265320 is 2356231152.

It is an interprime number because it is at equal distance from previous prime (25113265319) and next prime (25113265321).

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

It is not an unprimeable number, because it can be changed into a prime (25113265321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10414915 + ... + 10417325.

It is an arithmetic number, because the mean of its divisors is an integer number (346459680).

Almost surely, 2^25113265320 is an apocalyptic number.

25113265320 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 25113265320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44346839040).

25113265320 is an abundant number, since it is smaller than the sum of its proper divisors (63580412760).

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

25113265320 is a wasteful number, since it uses less digits than its factorization.

25113265320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056 (or 3052 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 25113265320 its reverse (2356231152), we get a palindrome (27469496472).

It can be divided in two parts, 2511326 and 5320, that added together give a triangular number (2516646 = T₂₂₄₃).

The spelling of 25113265320 in words is "twenty-five billion, one hundred thirteen million, two hundred sixty-five thousand, three hundred twenty".