25376889552 has 160 divisors (see below), whose sum is σ = 79252451328. Its totient is φ = 6840142848.

The previous prime is 25376889491. The next prime is 25376889581. The reversal of 25376889552 is 25598867352.

It is a happy number.

It is a super-3 number, since 3×25376889552³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 541653 + ... + 586635.

Almost surely, 2^25376889552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25376889552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39626225664).

25376889552 is an abundant number, since it is smaller than the sum of its proper divisors (53875561776).

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

25376889552 is a wasteful number, since it uses less digits than its factorization.

25376889552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45097 (or 45091 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 60.

The spelling of 25376889552 in words is "twenty-five billion, three hundred seventy-six million, eight hundred eighty-nine thousand, five hundred fifty-two".