210520049 has 2 divisors, whose sum is σ = 210520050. Its totient is φ = 210520048.

The previous prime is 210520001. The next prime is 210520103. The reversal of 210520049 is 940025012.

210520049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207561649 + 2958400 = 14407^2 + 1720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210520049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (210520549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105260024 + 105260025.

It is an arithmetic number, because the mean of its divisors is an integer number (105260025).

Almost surely, 2^210520049 is an apocalyptic number.

It is an amenable number.

210520049 is a deficient number, since it is larger than the sum of its proper divisors (1).

210520049 is an equidigital number, since it uses as much as digits as its factorization.

210520049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 210520049 is about 14509.3090462641. The cubic root of 210520049 is about 594.8824464704.

The spelling of 210520049 in words is "two hundred ten million, five hundred twenty thousand, forty-nine".