210049057 has 2 divisors, whose sum is σ = 210049058. Its totient is φ = 210049056.

The previous prime is 210049039. The next prime is 210049061. The reversal of 210049057 is 750940012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194017041 + 16032016 = 13929^2 + 4004^2 .

It is a cyclic number.

It is not a de Polignac number, because 210049057 - 2⁷ = 210048929 is a prime.

It is not a weakly prime, because it can be changed into another prime (210049097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105024528 + 105024529.

It is an arithmetic number, because the mean of its divisors is an integer number (105024529).

Almost surely, 2^210049057 is an apocalyptic number.

It is an amenable number.

210049057 is a deficient number, since it is larger than the sum of its proper divisors (1).

210049057 is an equidigital number, since it uses as much as digits as its factorization.

210049057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 210049057 is about 14493.0692746568. The cubic root of 210049057 is about 594.4384759551.

Adding to 210049057 its reverse (750940012), we get a palindrome (960989069).

The spelling of 210049057 in words is "two hundred ten million, forty-nine thousand, fifty-seven".