4251653243 has 2 divisors, whose sum is σ = 4251653244. Its totient is φ = 4251653242.

The previous prime is 4251653227. The next prime is 4251653347. The reversal of 4251653243 is 3423561524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4251653243 - 2⁴ = 4251653227 is a prime.

It is not a weakly prime, because it can be changed into another prime (4256653243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125826621 + 2125826622.

It is an arithmetic number, because the mean of its divisors is an integer number (2125826622).

Almost surely, 2^4251653243 is an apocalyptic number.

4251653243 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251653243 is an equidigital number, since it uses as much as digits as its factorization.

4251653243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 35.

The square root of 4251653243 is about 65204.7026141520. The cubic root of 4251653243 is about 1620.0159073528.

It can be divided in two parts, 42516 and 53243, that added together give a palindrome (95759).

The spelling of 4251653243 in words is "four billion, two hundred fifty-one million, six hundred fifty-three thousand, two hundred forty-three".