253020451 has 2 divisors, whose sum is σ = 253020452. Its totient is φ = 253020450.

The previous prime is 253020433. The next prime is 253020487. The reversal of 253020451 is 154020352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253020451 - 2²³ = 244631843 is a prime.

It is not a weakly prime, because it can be changed into another prime (253020421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126510225 + 126510226.

It is an arithmetic number, because the mean of its divisors is an integer number (126510226).

Almost surely, 2^253020451 is an apocalyptic number.

253020451 is a deficient number, since it is larger than the sum of its proper divisors (1).

253020451 is an equidigital number, since it uses as much as digits as its factorization.

253020451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 253020451 is about 15906.6165792729. The cubic root of 253020451 is about 632.4873955838.

Subtracting from 253020451 its reverse (154020352), we obtain a palindrome (99000099).

The spelling of 253020451 in words is "two hundred fifty-three million, twenty thousand, four hundred fifty-one".