25020274485388 has 72 divisors (see below), whose sum is σ = 54200342875392. Its totient is φ = 9895495925952.

The previous prime is 25020274485341. The next prime is 25020274485413. The reversal of 25020274485388 is 88358447202052.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17123631 + ... + 18527257.

It is an arithmetic number, because the mean of its divisors is an integer number (752782539936).

Almost surely, 2^{25020274485388} is an apocalyptic number.

25020274485388 is a gapful number since it is divisible by the number (28) 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 25020274485388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27100171437696).

25020274485388 is an abundant number, since it is smaller than the sum of its proper divisors (29180068390004).

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

25020274485388 is a wasteful number, since it uses less digits than its factorization.

25020274485388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407431 (or 1407416 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 58.

The spelling of 25020274485388 in words is "twenty-five trillion, twenty billion, two hundred seventy-four million, four hundred eighty-five thousand, three hundred eighty-eight".