25250723228 has 6 divisors (see below), whose sum is σ = 44188765656. Its totient is φ = 12625361612.

The previous prime is 25250723221. The next prime is 25250723231. The reversal of 25250723228 is 82232705252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25250723191 and 25250723200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250723221) 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 as a sum of consecutive naturals, namely, 3156340400 + ... + 3156340407.

It is an arithmetic number, because the mean of its divisors is an integer number (7364794276).

Almost surely, 2^25250723228 is an apocalyptic number.

It is an amenable number.

25250723228 is a deficient number, since it is larger than the sum of its proper divisors (18938042428).

25250723228 is a wasteful number, since it uses less digits than its factorization.

25250723228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312680811 (or 6312680809 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 25250723228 in words is "twenty-five billion, two hundred fifty million, seven hundred twenty-three thousand, two hundred twenty-eight".