25054106213 has 4 divisors (see below), whose sum is σ = 25918040940. Its totient is φ = 24190171488.

The previous prime is 25054106137. The next prime is 25054106239. The reversal of 25054106213 is 31260145052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10413590209 + 14640516004 = 102047^2 + 120998^2 .

It is a cyclic number.

It is not a de Polignac number, because 25054106213 - 2⁸ = 25054105957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 863934697 = 25054106213 / (2 + 5 + 0 + 5 + 4 + 1 + 0 + 6 + 2 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25054156213) 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 3 ways as a sum of consecutive naturals, for example, 431967320 + ... + 431967377.

It is an arithmetic number, because the mean of its divisors is an integer number (6479510235).

Almost surely, 2^25054106213 is an apocalyptic number.

It is an amenable number.

25054106213 is a deficient number, since it is larger than the sum of its proper divisors (863934727).

25054106213 is an equidigital number, since it uses as much as digits as its factorization.

25054106213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863934726.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 25054106213 in words is "twenty-five billion, fifty-four million, one hundred six thousand, two hundred thirteen".