25030261894640 has 80 divisors (see below), whose sum is σ = 60524766583680. Its totient is φ = 9618197022720.

The previous prime is 25030261894637. The next prime is 25030261894657. The reversal of 25030261894640 is 4649816203052.

It is a tau number, because it is divible by the number of its divisors (80).

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, 53286221 + ... + 53753900.

It is an arithmetic number, because the mean of its divisors is an integer number (756559582296).

Almost surely, 2^{25030261894640} is an apocalyptic number.

25030261894640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25030261894640 is an abundant number, since it is smaller than the sum of its proper divisors (35494504689040).

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

25030261894640 is a wasteful number, since it uses less digits than its factorization.

25030261894640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107040250 (or 107040244 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 25030261894640 in words is "twenty-five trillion, thirty billion, two hundred sixty-one million, eight hundred ninety-four thousand, six hundred forty".