25229325849 has 48 divisors (see below), whose sum is σ = 43038067968. Its totient is φ = 13024585728.

The previous prime is 25229325841. The next prime is 25229325859. The reversal of 25229325849 is 94852392252.

It is not a de Polignac number, because 25229325849 - 2³ = 25229325841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25229325841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50632 + ... + 230265.

It is an arithmetic number, because the mean of its divisors is an integer number (896626416).

Almost surely, 2^25229325849 is an apocalyptic number.

It is an amenable number.

25229325849 is a deficient number, since it is larger than the sum of its proper divisors (17808742119).

25229325849 is a wasteful number, since it uses less digits than its factorization.

25229325849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280974 (or 280967 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The spelling of 25229325849 in words is "twenty-five billion, two hundred twenty-nine million, three hundred twenty-five thousand, eight hundred forty-nine".