25544610213 has 16 divisors (see below), whose sum is σ = 34799870400. Its totient is φ = 16662957696.

The previous prime is 25544610199. The next prime is 25544610239. The reversal of 25544610213 is 31201644552.

It is not a de Polignac number, because 25544610213 - 2⁴ = 25544610197 is a prime.

It is a super-2 number, since 2×25544610213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25544610293) 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, 396520 + ... + 456417.

It is an arithmetic number, because the mean of its divisors is an integer number (2174991900).

Almost surely, 2^25544610213 is an apocalyptic number.

It is an amenable number.

25544610213 is a deficient number, since it is larger than the sum of its proper divisors (9255260187).

25544610213 is a wasteful number, since it uses less digits than its factorization.

25544610213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853156.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 25544610213 in words is "twenty-five billion, five hundred forty-four million, six hundred ten thousand, two hundred thirteen".