25225005456 has 60 divisors (see below), whose sum is σ = 80679980992. Its totient is φ = 7207144128.

The previous prime is 25225005431. The next prime is 25225005499. The reversal of 25225005456 is 65450052252.

25225005456 is a `hidden beast` number, since 2 + 52 + 2 + 500 + 54 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 25225005456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12511396 + ... + 12513411.

Almost surely, 2^25225005456 is an apocalyptic number.

It is an amenable number.

25225005456 is an abundant number, since it is smaller than the sum of its proper divisors (55454975536).

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

25225005456 is a wasteful number, since it uses less digits than its factorization.

25225005456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25024828 (or 25024819 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 25225005456 in words is "twenty-five billion, two hundred twenty-five million, five thousand, four hundred fifty-six".