25252445205 has 96 divisors (see below), whose sum is σ = 47670884352. Its totient is φ = 12292300800.

The previous prime is 25252445191. The next prime is 25252445219. The reversal of 25252445205 is 50254425252.

25252445205 is a `hidden beast` number, since 2 + 5 + 2 + 5 + 2 + 445 + 205 = 666.

It is an interprime number because it is at equal distance from previous prime (25252445191) and next prime (25252445219).

It is not a de Polignac number, because 25252445205 - 2⁷ = 25252445077 is a prime.

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 25252445205.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 21564270 + ... + 21565440.

It is an arithmetic number, because the mean of its divisors is an integer number (496571712).

Almost surely, 2^25252445205 is an apocalyptic number.

It is an amenable number.

25252445205 is a deficient number, since it is larger than the sum of its proper divisors (22418439147).

25252445205 is a wasteful number, since it uses less digits than its factorization.

25252445205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The spelling of 25252445205 in words is "twenty-five billion, two hundred fifty-two million, four hundred forty-five thousand, two hundred five".