253455049 has 2 divisors, whose sum is σ = 253455050. Its totient is φ = 253455048.

The previous prime is 253455047. The next prime is 253455107. The reversal of 253455049 is 940554352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253446400 + 8649 = 15920^2 + 93^2 .

It is a cyclic number.

It is not a de Polignac number, because 253455049 - 2¹ = 253455047 is a prime.

Together with 253455047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 253454999 and 253455017.

It is not a weakly prime, because it can be changed into another prime (253455047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126727524 + 126727525.

It is an arithmetic number, because the mean of its divisors is an integer number (126727525).

Almost surely, 2^253455049 is an apocalyptic number.

It is an amenable number.

253455049 is a deficient number, since it is larger than the sum of its proper divisors (1).

253455049 is an equidigital number, since it uses as much as digits as its factorization.

253455049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 253455049 is about 15920.2716371298. The cubic root of 253455049 is about 632.8493169565.

The spelling of 253455049 in words is "two hundred fifty-three million, four hundred fifty-five thousand, forty-nine".