25436641233 has 16 divisors (see below), whose sum is σ = 34571468736. Its totient is φ = 16632926400.

The previous prime is 25436641201. The next prime is 25436641249. The reversal of 25436641233 is 33214663452.

It is not a de Polignac number, because 25436641233 - 2⁵ = 25436641201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25436641191 and 25436641200.

It is not an unprimeable number, because it can be changed into a prime (25436641253) 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, 359866 + ... + 424707.

It is an arithmetic number, because the mean of its divisors is an integer number (2160716796).

Almost surely, 2^25436641233 is an apocalyptic number.

It is an amenable number.

25436641233 is a deficient number, since it is larger than the sum of its proper divisors (9134827503).

25436641233 is a wasteful number, since it uses less digits than its factorization.

25436641233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784784.

The product of its digits is 311040, while the sum is 39.

The spelling of 25436641233 in words is "twenty-five billion, four hundred thirty-six million, six hundred forty-one thousand, two hundred thirty-three".