25411894032 has 160 divisors (see below), whose sum is σ = 82178668800. Its totient is φ = 6597771264.

The previous prime is 25411894009. The next prime is 25411894037. The reversal of 25411894032 is 23049811452.

It is not an unprimeable number, because it can be changed into a prime (25411894037) 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, 88944 + ... + 242352.

It is an arithmetic number, because the mean of its divisors is an integer number (513616680).

Almost surely, 2^25411894032 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 25411894032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41089334400).

25411894032 is an abundant number, since it is smaller than the sum of its proper divisors (56766774768).

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

25411894032 is a wasteful number, since it uses less digits than its factorization.

25411894032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153473 (or 153467 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 25411894032 in words is "twenty-five billion, four hundred eleven million, eight hundred ninety-four thousand, thirty-two".