25516522255 has 16 divisors (see below), whose sum is σ = 35023477824. Its totient is φ = 17482348800.

The previous prime is 25516522217. The next prime is 25516522267. The reversal of 25516522255 is 55222561552.

It is not a de Polignac number, because 25516522255 - 2⁹ = 25516521743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263796 + ... + 347305.

It is an arithmetic number, because the mean of its divisors is an integer number (2188967364).

Almost surely, 2^25516522255 is an apocalyptic number.

25516522255 is a deficient number, since it is larger than the sum of its proper divisors (9506955569).

25516522255 is a wasteful number, since it uses less digits than its factorization.

25516522255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612306.

The product of its digits is 300000, while the sum is 40.

The spelling of 25516522255 in words is "twenty-five billion, five hundred sixteen million, five hundred twenty-two thousand, two hundred fifty-five".