253631069 has 2 divisors, whose sum is σ = 253631070. Its totient is φ = 253631068.

The previous prime is 253631047. The next prime is 253631141. The reversal of 253631069 is 960136352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172396900 + 81234169 = 13130^2 + 9013^2 .

It is a cyclic number.

It is not a de Polignac number, because 253631069 - 2²⁰ = 252582493 is a prime.

It is a super-2 number, since 2×253631069² = 128657438324165522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253631269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126815534 + 126815535.

It is an arithmetic number, because the mean of its divisors is an integer number (126815535).

Almost surely, 2^253631069 is an apocalyptic number.

It is an amenable number.

253631069 is a deficient number, since it is larger than the sum of its proper divisors (1).

253631069 is an equidigital number, since it uses as much as digits as its factorization.

253631069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 253631069 is about 15925.7988496653. The cubic root of 253631069 is about 632.9957839008.

The spelling of 253631069 in words is "two hundred fifty-three million, six hundred thirty-one thousand, sixty-nine".