25531353211 has 16 divisors (see below), whose sum is σ = 31444559104. Its totient is φ = 20186902944.

The previous prime is 25531353203. The next prime is 25531353217. The reversal of 25531353211 is 11235313552.

It is not a de Polignac number, because 25531353211 - 2³ = 25531353203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25531353217) 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 15 ways as a sum of consecutive naturals, for example, 40360 + ... + 229546.

It is an arithmetic number, because the mean of its divisors is an integer number (1965284944).

Almost surely, 2^25531353211 is an apocalyptic number.

25531353211 is a deficient number, since it is larger than the sum of its proper divisors (5913205893).

25531353211 is a wasteful number, since it uses less digits than its factorization.

25531353211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190690.

The product of its digits is 13500, while the sum is 31.

Adding to 25531353211 its reverse (11235313552), we get a palindrome (36766666763).

The spelling of 25531353211 in words is "twenty-five billion, five hundred thirty-one million, three hundred fifty-three thousand, two hundred eleven".