253006349 has 2 divisors, whose sum is σ = 253006350. Its totient is φ = 253006348.

The previous prime is 253006319. The next prime is 253006433. The reversal of 253006349 is 943600352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152646025 + 100360324 = 12355^2 + 10018^2 .

It is a cyclic number.

It is not a de Polignac number, because 253006349 - 2²⁰ = 251957773 is a prime.

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 (253006309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126503174 + 126503175.

It is an arithmetic number, because the mean of its divisors is an integer number (126503175).

Almost surely, 2^253006349 is an apocalyptic number.

It is an amenable number.

253006349 is a deficient number, since it is larger than the sum of its proper divisors (1).

253006349 is an equidigital number, since it uses as much as digits as its factorization.

253006349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 253006349 is about 15906.1732984398. The cubic root of 253006349 is about 632.4756448828.

The spelling of 253006349 in words is "two hundred fifty-three million, six thousand, three hundred forty-nine".