25305089340 has 48 divisors (see below), whose sum is σ = 70863156000. Its totient is φ = 6747175680.

The previous prime is 25305089317. The next prime is 25305089353. The reversal of 25305089340 is 4398050352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563310 + ... + 606570.

It is an arithmetic number, because the mean of its divisors is an integer number (1476315750).

Almost surely, 2^25305089340 is an apocalyptic number.

25305089340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25305089340 is an abundant number, since it is smaller than the sum of its proper divisors (45558066660).

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

25305089340 is a wasteful number, since it uses less digits than its factorization.

25305089340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53022 (or 53020 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 25305089340 in words is "twenty-five billion, three hundred five million, eighty-nine thousand, three hundred forty".