25025323243 has 2 divisors, whose sum is σ = 25025323244. Its totient is φ = 25025323242.

The previous prime is 25025323237. The next prime is 25025323291. The reversal of 25025323243 is 34232352052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25025323243 is a prime.

It is not a weakly prime, because it can be changed into another prime (25025333243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12512661621 + 12512661622.

It is an arithmetic number, because the mean of its divisors is an integer number (12512661622).

Almost surely, 2^25025323243 is an apocalyptic number.

25025323243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25025323243 is an equidigital number, since it uses as much as digits as its factorization.

25025323243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 25025323243 its reverse (34232352052), we get a palindrome (59257675295).

The spelling of 25025323243 in words is "twenty-five billion, twenty-five million, three hundred twenty-three thousand, two hundred forty-three".