25039137433 has 2 divisors, whose sum is σ = 25039137434. Its totient is φ = 25039137432.

The previous prime is 25039137421. The next prime is 25039137467. The reversal of 25039137433 is 33473193052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22974071184 + 2065066249 = 151572^2 + 45443^2 .

It is a cyclic number.

It is not a de Polignac number, because 25039137433 - 2¹⁷ = 25039006361 is a prime.

It is not a weakly prime, because it can be changed into another prime (25039137493) 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 as a sum of consecutive naturals, namely, 12519568716 + 12519568717.

It is an arithmetic number, because the mean of its divisors is an integer number (12519568717).

Almost surely, 2^25039137433 is an apocalyptic number.

It is an amenable number.

25039137433 is a deficient number, since it is larger than the sum of its proper divisors (1).

25039137433 is an equidigital number, since it uses as much as digits as its factorization.

25039137433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 40.

The spelling of 25039137433 in words is "twenty-five billion, thirty-nine million, one hundred thirty-seven thousand, four hundred thirty-three".