25550558252 has 12 divisors (see below), whose sum is σ = 45279470880. Its totient is φ = 12613566576.

The previous prime is 25550558203. The next prime is 25550558263. The reversal of 25550558252 is 25285505552.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 40427783 + ... + 40428414.

It is an arithmetic number, because the mean of its divisors is an integer number (3773289240).

Almost surely, 2^25550558252 is an apocalyptic number.

It is an amenable number.

25550558252 is a deficient number, since it is larger than the sum of its proper divisors (19728912628).

25550558252 is a wasteful number, since it uses less digits than its factorization.

25550558252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80856280 (or 80856278 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 44.

The spelling of 25550558252 in words is "twenty-five billion, five hundred fifty million, five hundred fifty-eight thousand, two hundred fifty-two".