25053003049 has 4 divisors (see below), whose sum is σ = 25107348420. Its totient is φ = 24998657680.

The previous prime is 25053002981. The next prime is 25053003077. The reversal of 25053003049 is 94030035052.

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 9401241600 + 15651761449 = 96960^2 + 125107^2 .

It is a cyclic number.

It is not a de Polignac number, because 25053003049 - 2²¹ = 25050905897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25053003049.

It is not an unprimeable number, because it can be changed into a prime (25053006049) 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, 27171994 + ... + 27172915.

It is an arithmetic number, because the mean of its divisors is an integer number (6276837105).

Almost surely, 2^25053003049 is an apocalyptic number.

It is an amenable number.

25053003049 is a deficient number, since it is larger than the sum of its proper divisors (54345371).

25053003049 is an equidigital number, since it uses as much as digits as its factorization.

25053003049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54345370.

The product of its (nonzero) digits is 16200, while the sum is 31.

The spelling of 25053003049 in words is "twenty-five billion, fifty-three million, three thousand, forty-nine".