253321469 has 2 divisors, whose sum is σ = 253321470. Its totient is φ = 253321468.

The previous prime is 253321463. The next prime is 253321477. The reversal of 253321469 is 964123352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237560569 + 15760900 = 15413^2 + 3970^2 .

It is a cyclic number.

It is not a de Polignac number, because 253321469 - 2²⁰ = 252272893 is a prime.

It is a super-2 number, since 2×253321469² = 128343533312635922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253321463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126660734 + 126660735.

It is an arithmetic number, because the mean of its divisors is an integer number (126660735).

Almost surely, 2^253321469 is an apocalyptic number.

It is an amenable number.

253321469 is a deficient number, since it is larger than the sum of its proper divisors (1).

253321469 is an equidigital number, since it uses as much as digits as its factorization.

253321469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 253321469 is about 15916.0758040416. The cubic root of 253321469 is about 632.7381192410.

The spelling of 253321469 in words is "two hundred fifty-three million, three hundred twenty-one thousand, four hundred sixty-nine".