25253912019688 has 64 divisors (see below), whose sum is σ = 52060145843520. Its totient is φ = 11389450867200.

The previous prime is 25253912019649. The next prime is 25253912019689. The reversal of 25253912019688 is 88691021935252.

It is not an unprimeable number, because it can be changed into a prime (25253912019689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5785756 + ... + 9164212.

It is an arithmetic number, because the mean of its divisors is an integer number (813439778805).

Almost surely, 2^{25253912019688} 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 25253912019688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26030072921760).

25253912019688 is an abundant number, since it is smaller than the sum of its proper divisors (26806233823832).

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

25253912019688 is a wasteful number, since it uses less digits than its factorization.

25253912019688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379138 (or 3379134 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 61.

The spelling of 25253912019688 in words is "twenty-five trillion, two hundred fifty-three billion, nine hundred twelve million, nineteen thousand, six hundred eighty-eight".