505049 has 2 divisors, whose sum is σ = 505050. Its totient is φ = 505048.

The previous prime is 505033. The next prime is 505051. The reversal of 505049 is 940505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399424 + 105625 = 632^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 505049 - 2⁴ = 505033 is a prime.

Together with 505051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (505949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252524 + 252525.

It is an arithmetic number, because the mean of its divisors is an integer number (252525).

2⁵⁰⁵⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

505049 is a deficient number, since it is larger than the sum of its proper divisors (1).

505049 is an equidigital number, since it uses as much as digits as its factorization.

505049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 505049 is about 710.6679956210. The cubic root of 505049 is about 79.6363179474.

The spelling of 505049 in words is "five hundred five thousand, forty-nine".