25336745049 has 16 divisors (see below), whose sum is σ = 42118225920. Its totient is φ = 13161945360.

The previous prime is 25336745033. The next prime is 25336745051. The reversal of 25336745049 is 94054763352.

It is not a de Polignac number, because 25336745049 - 2⁴ = 25336745033 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25336744989 and 25336745007.

It is not an unprimeable number, because it can be changed into a prime (25336745009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54841209 + ... + 54841670.

It is an arithmetic number, because the mean of its divisors is an integer number (2632389120).

Almost surely, 2^25336745049 is an apocalyptic number.

It is an amenable number.

25336745049 is a deficient number, since it is larger than the sum of its proper divisors (16781480871).

25336745049 is a wasteful number, since it uses less digits than its factorization.

25336745049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109682900.

The product of its (nonzero) digits is 2721600, while the sum is 48.

The spelling of 25336745049 in words is "twenty-five billion, three hundred thirty-six million, seven hundred forty-five thousand, forty-nine".