253004407 has 2 divisors, whose sum is σ = 253004408. Its totient is φ = 253004406.

The previous prime is 253004383. The next prime is 253004413. The reversal of 253004407 is 704400352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253004407 is a prime.

It is a super-2 number, since 2×253004407² = 128022459922843298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253004417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126502203 + 126502204.

It is an arithmetic number, because the mean of its divisors is an integer number (126502204).

Almost surely, 2^253004407 is an apocalyptic number.

253004407 is a deficient number, since it is larger than the sum of its proper divisors (1).

253004407 is an equidigital number, since it uses as much as digits as its factorization.

253004407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 253004407 is about 15906.1122528417. The cubic root of 253004407 is about 632.4740266483.

Adding to 253004407 its reverse (704400352), we get a palindrome (957404759).

The spelling of 253004407 in words is "two hundred fifty-three million, four thousand, four hundred seven".