25554609213 has 24 divisors (see below), whose sum is σ = 39644256960. Its totient is φ = 14599488960.

The previous prime is 25554609193. The next prime is 25554609263. The reversal of 25554609213 is 31290645552.

It is a happy number.

It is not a de Polignac number, because 25554609213 - 2¹² = 25554605117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25554609263) 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 23 ways as a sum of consecutive naturals, for example, 782353 + ... + 814361.

It is an arithmetic number, because the mean of its divisors is an integer number (1651844040).

Almost surely, 2^25554609213 is an apocalyptic number.

It is an amenable number.

25554609213 is a deficient number, since it is larger than the sum of its proper divisors (14089647747).

25554609213 is a wasteful number, since it uses less digits than its factorization.

25554609213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37457 (or 37450 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 25554609213 in words is "twenty-five billion, five hundred fifty-four million, six hundred nine thousand, two hundred thirteen".