25245512226 has 96 divisors (see below), whose sum is σ = 61060386816. Its totient is φ = 7472700000.

The previous prime is 25245512203. The next prime is 25245512251. The reversal of 25245512226 is 62221554252.

25245512226 is a `hidden beast` number, since 2 + 524 + 5 + 5 + 122 + 2 + 6 = 666.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5311351 + ... + 5316101.

It is an arithmetic number, because the mean of its divisors is an integer number (636045696).

Almost surely, 2^25245512226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25245512226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30530193408).

25245512226 is an abundant number, since it is smaller than the sum of its proper divisors (35814874590).

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

25245512226 is a wasteful number, since it uses less digits than its factorization.

25245512226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388 (or 5385 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The spelling of 25245512226 in words is "twenty-five billion, two hundred forty-five million, five hundred twelve thousand, two hundred twenty-six".