25428751254 has 32 divisors (see below), whose sum is σ = 56513622240. Its totient is φ = 8475457536.

The previous prime is 25428751247. The next prime is 25428751301. The reversal of 25428751254 is 45215782452.

25428751254 is a `hidden beast` number, since 2 + 5 + 4 + 2 + 87 + 512 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972982 + ... + 998774.

It is an arithmetic number, because the mean of its divisors is an integer number (1766050695).

Almost surely, 2^25428751254 is an apocalyptic number.

25428751254 is an abundant number, since it is smaller than the sum of its proper divisors (31084870986).

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

25428751254 is a wasteful number, since it uses less digits than its factorization.

25428751254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44061 (or 44055 counting only the distinct ones).

The product of its digits is 896000, while the sum is 45.

The spelling of 25428751254 in words is "twenty-five billion, four hundred twenty-eight million, seven hundred fifty-one thousand, two hundred fifty-four".