25556265552 has 40 divisors (see below), whose sum is σ = 69495110560. Its totient is φ = 8070399360.

The previous prime is 25556265439. The next prime is 25556265599.

25556265552 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14010199 + ... + 14012022.

It is an arithmetic number, because the mean of its divisors is an integer number (1737377764).

Almost surely, 2^25556265552 is an apocalyptic number.

It is an amenable number.

25556265552 is an abundant number, since it is smaller than the sum of its proper divisors (43938845008).

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

25556265552 is a wasteful number, since it uses less digits than its factorization.

25556265552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28022251 (or 28022245 counting only the distinct ones).

The product of its digits is 4500000, while the sum is 48.

The spelling of 25556265552 in words is "twenty-five billion, five hundred fifty-six million, two hundred sixty-five thousand, five hundred fifty-two".