25504582228 has 12 divisors (see below), whose sum is σ = 45261653472. Its totient is φ = 12572681240.

The previous prime is 25504582223. The next prime is 25504582277. The reversal of 25504582228 is 82228540552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25504582223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44902150 + ... + 44902717.

It is an arithmetic number, because the mean of its divisors is an integer number (3771804456).

Almost surely, 2^25504582228 is an apocalyptic number.

It is an amenable number.

25504582228 is a deficient number, since it is larger than the sum of its proper divisors (19757071244).

25504582228 is a wasteful number, since it uses less digits than its factorization.

25504582228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89804942 (or 89804940 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 43.

The spelling of 25504582228 in words is "twenty-five billion, five hundred four million, five hundred eighty-two thousand, two hundred twenty-eight".