25313453040 has 160 divisors (see below), whose sum is σ = 80537273856. Its totient is φ = 6574740480.

The previous prime is 25313453027. The next prime is 25313453051. The reversal of 25313453040 is 4035431352.

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

It is a junction number, because it is equal to n+sod(n) for n = 25313452989 and 25313453007.

It is a congruent number.

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, 1499527 + ... + 1516313.

Almost surely, 2^25313453040 is an apocalyptic number.

25313453040 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 25313453040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40268636928).

25313453040 is an abundant number, since it is smaller than the sum of its proper divisors (55223820816).

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

25313453040 is a wasteful number, since it uses less digits than its factorization.

25313453040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16967 (or 16961 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 25313453040 its reverse (4035431352), we get a palindrome (29348884392).

The spelling of 25313453040 in words is "twenty-five billion, three hundred thirteen million, four hundred fifty-three thousand, forty".