25208727474 has 96 divisors (see below), whose sum is σ = 62159348160. Its totient is φ = 6772211712.

The previous prime is 25208727449. The next prime is 25208727487. The reversal of 25208727474 is 47472780252.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7290354 + ... + 7293810.

It is an arithmetic number, because the mean of its divisors is an integer number (647493210).

Almost surely, 2^25208727474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25208727474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31079674080).

25208727474 is an abundant number, since it is smaller than the sum of its proper divisors (36950620686).

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

25208727474 is a wasteful number, since it uses less digits than its factorization.

25208727474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952 (or 4945 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 48.

The spelling of 25208727474 in words is "twenty-five billion, two hundred eight million, seven hundred twenty-seven thousand, four hundred seventy-four".