25347223747 has 2 divisors, whose sum is σ = 25347223748. Its totient is φ = 25347223746.

The previous prime is 25347223723. The next prime is 25347223757. The reversal of 25347223747 is 74732274352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25347223747 - 2³¹ = 23199740099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25347223697 and 25347223706.

It is not a weakly prime, because it can be changed into another prime (25347223757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12673611873 + 12673611874.

It is an arithmetic number, because the mean of its divisors is an integer number (12673611874).

Almost surely, 2^25347223747 is an apocalyptic number.

25347223747 is a deficient number, since it is larger than the sum of its proper divisors (1).

25347223747 is an equidigital number, since it uses as much as digits as its factorization.

25347223747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 46.

The spelling of 25347223747 in words is "twenty-five billion, three hundred forty-seven million, two hundred twenty-three thousand, seven hundred forty-seven".