25255527775 has 48 divisors (see below), whose sum is σ = 33469286400. Its totient is φ = 18863919360.

The previous prime is 25255527769. The next prime is 25255527799. The reversal of 25255527775 is 57772555252.

It is not a de Polignac number, because 25255527775 - 2³ = 25255527767 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 4039702 + ... + 4045948.

It is an arithmetic number, because the mean of its divisors is an integer number (697276800).

Almost surely, 2^25255527775 is an apocalyptic number.

25255527775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25255527775 is a deficient number, since it is larger than the sum of its proper divisors (8213758625).

25255527775 is a wasteful number, since it uses less digits than its factorization.

25255527775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6448 (or 6443 counting only the distinct ones).

The product of its digits is 8575000, while the sum is 52.

The spelling of 25255527775 in words is "twenty-five billion, two hundred fifty-five million, five hundred twenty-seven thousand, seven hundred seventy-five".