25412520254 has 16 divisors (see below), whose sum is σ = 43772762880. Its totient is φ = 10943190360.

The previous prime is 25412520241. The next prime is 25412520319. The reversal of 25412520254 is 45202521452.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25412520254.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 30397334 + ... + 30398169.

It is an arithmetic number, because the mean of its divisors is an integer number (2735797680).

Almost surely, 2^25412520254 is an apocalyptic number.

25412520254 is a deficient number, since it is larger than the sum of its proper divisors (18360242626).

25412520254 is a wasteful number, since it uses less digits than its factorization.

25412520254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60795535.

The product of its (nonzero) digits is 32000, while the sum is 32.

The spelling of 25412520254 in words is "twenty-five billion, four hundred twelve million, five hundred twenty thousand, two hundred fifty-four".