25498140336 has 400 divisors, whose sum is σ = 82922906880. Its totient is φ = 7524679680.

The previous prime is 25498140313. The next prime is 25498140341. The reversal of 25498140336 is 63304189452.

It is a junction number, because it is equal to n+sod(n) for n = 25498140291 and 25498140300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25270200 + ... + 25271208.

Almost surely, 2^25498140336 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 25498140336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41461453440).

25498140336 is an abundant number, since it is smaller than the sum of its proper divisors (57424766544).

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

25498140336 is a wasteful number, since it uses less digits than its factorization.

25498140336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 25498140336 in words is "twenty-five billion, four hundred ninety-eight million, one hundred forty thousand, three hundred thirty-six".