25525551234 has 8 divisors (see below), whose sum is σ = 51051102480. Its totient is φ = 8508517076.

The previous prime is 25525551211. The next prime is 25525551241. The reversal of 25525551234 is 43215552552.

It is a sphenic number, since it is the product of 3 distinct primes.

25525551234 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25525551192 and 25525551201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2127129264 + ... + 2127129275.

It is an arithmetic number, because the mean of its divisors is an integer number (6381387810).

Almost surely, 2^25525551234 is an apocalyptic number.

25525551234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25525551234 is a wasteful number, since it uses less digits than its factorization.

25525551234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254258544.

The product of its digits is 300000, while the sum is 39.

The spelling of 25525551234 in words is "twenty-five billion, five hundred twenty-five million, five hundred fifty-one thousand, two hundred thirty-four".