25255252755 has 12 divisors (see below), whose sum is σ = 43775771520. Its totient is φ = 13469468112.

The previous prime is 25255252733. The next prime is 25255252777. The reversal of 25255252755 is 55725255252.

25255252755 is a `hidden beast` number, since 2 + 5 + 25 + 52 + 527 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (25255252733) and next prime (25255252777).

It is not a de Polignac number, because 25255252755 - 2⁶ = 25255252691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 561227839 = 25255252755 / (2 + 5 + 2 + 5 + 5 + 2 + 5 + 2 + 7 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 25255252755.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280613875 + ... + 280613964.

It is an arithmetic number, because the mean of its divisors is an integer number (3647980960).

Almost surely, 2^25255252755 is an apocalyptic number.

25255252755 is a deficient number, since it is larger than the sum of its proper divisors (18520518765).

25255252755 is a wasteful number, since it uses less digits than its factorization.

25255252755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561227850 (or 561227847 counting only the distinct ones).

The product of its digits is 1750000, while the sum is 45.

The spelling of 25255252755 in words is "twenty-five billion, two hundred fifty-five million, two hundred fifty-two thousand, seven hundred fifty-five".