25105452016 has 80 divisors (see below), whose sum is σ = 51220721664. Its totient is φ = 11897690112.

The previous prime is 25105451957. The next prime is 25105452017. The reversal of 25105452016 is 61025450152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25105452017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37303456 + ... + 37304128.

Almost surely, 2^25105452016 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 25105452016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25610360832).

25105452016 is an abundant number, since it is smaller than the sum of its proper divisors (26115269648).

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

25105452016 is a wasteful number, since it uses less digits than its factorization.

25105452016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478 (or 1472 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 25105452016 in words is "twenty-five billion, one hundred five million, four hundred fifty-two thousand, sixteen".