253614649 has 2 divisors, whose sum is σ = 253614650. Its totient is φ = 253614648.

The previous prime is 253614587. The next prime is 253614661. The reversal of 253614649 is 946416352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252333225 + 1281424 = 15885^2 + 1132^2 .

It is a cyclic number.

It is not a de Polignac number, because 253614649 - 2¹⁹ = 253090361 is a prime.

It is not a weakly prime, because it can be changed into another prime (253614349) 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, 126807324 + 126807325.

It is an arithmetic number, because the mean of its divisors is an integer number (126807325).

Almost surely, 2^253614649 is an apocalyptic number.

It is an amenable number.

253614649 is a deficient number, since it is larger than the sum of its proper divisors (1).

253614649 is an equidigital number, since it uses as much as digits as its factorization.

253614649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 253614649 is about 15925.2833255801. The cubic root of 253614649 is about 632.9821236197.

The spelling of 253614649 in words is "two hundred fifty-three million, six hundred fourteen thousand, six hundred forty-nine".