253456747 has 2 divisors, whose sum is σ = 253456748. Its totient is φ = 253456746.

The previous prime is 253456739. The next prime is 253456811. The reversal of 253456747 is 747654352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253456747 - 2³ = 253456739 is a prime.

It is not a weakly prime, because it can be changed into another prime (253456717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126728373 + 126728374.

It is an arithmetic number, because the mean of its divisors is an integer number (126728374).

Almost surely, 2^253456747 is an apocalyptic number.

253456747 is a deficient number, since it is larger than the sum of its proper divisors (1).

253456747 is an equidigital number, since it uses as much as digits as its factorization.

253456747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 43.

The square root of 253456747 is about 15920.3249652763. The cubic root of 253456747 is about 632.8507301929.

The spelling of 253456747 in words is "two hundred fifty-three million, four hundred fifty-six thousand, seven hundred forty-seven".