25001142447480 has 64 divisors (see below), whose sum is σ = 75314644970400. Its totient is φ = 6639307530240.

The previous prime is 25001142447419. The next prime is 25001142447503. The reversal of 25001142447480 is 8474424110052.

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, 432217665 + ... + 432275504.

Almost surely, 2^{25001142447480} is an apocalyptic number.

25001142447480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25001142447480 is an abundant number, since it is smaller than the sum of its proper divisors (50313502522920).

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

25001142447480 is a wasteful number, since it uses less digits than its factorization.

25001142447480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864493424 (or 864493420 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 42.

The spelling of 25001142447480 in words is "twenty-five trillion, one billion, one hundred forty-two million, four hundred forty-seven thousand, four hundred eighty".