25027697976 has 128 divisors (see below), whose sum is σ = 68929781760. Its totient is φ = 7538227200.

The previous prime is 25027697971. The next prime is 25027698037. The reversal of 25027697976 is 67979672052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25027697971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1598506 + ... + 1614086.

It is an arithmetic number, because the mean of its divisors is an integer number (538513920).

Almost surely, 2^25027697976 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 25027697976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34464890880).

25027697976 is an abundant number, since it is smaller than the sum of its proper divisors (43902083784).

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

25027697976 is a wasteful number, since it uses less digits than its factorization.

25027697976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15765 (or 15761 counting only the distinct ones).

The product of its (nonzero) digits is 20003760, while the sum is 60.

It can be divided in two parts, 25027 and 697976, that added together give a triangular number (723003 = T₁₂₀₂).

The spelling of 25027697976 in words is "twenty-five billion, twenty-seven million, six hundred ninety-seven thousand, nine hundred seventy-six".