25552414251 has 32 divisors (see below), whose sum is σ = 46591301120. Its totient is φ = 13478195232.

The previous prime is 25552414243. The next prime is 25552414313. The reversal of 25552414251 is 15241425552.

25552414251 is a `hidden beast` number, since 25 + 552 + 41 + 42 + 5 + 1 = 666.

It is not a de Polignac number, because 25552414251 - 2³ = 25552414243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25552414211) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5197465 + ... + 5202378.

It is an arithmetic number, because the mean of its divisors is an integer number (1455978160).

Almost surely, 2^25552414251 is an apocalyptic number.

25552414251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25552414251 is a deficient number, since it is larger than the sum of its proper divisors (21038886869).

25552414251 is a wasteful number, since it uses less digits than its factorization.

25552414251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10399872 (or 10399866 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The spelling of 25552414251 in words is "twenty-five billion, five hundred fifty-two million, four hundred fourteen thousand, two hundred fifty-one".