210052305 has 16 divisors (see below), whose sum is σ = 373426560. Its totient is φ = 112027824.

The previous prime is 210052279. The next prime is 210052309. The reversal of 210052305 is 503250012.

It is a happy number.

It is not a de Polignac number, because 210052305 - 2⁵ = 210052273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210052309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 777837 + ... + 778106.

It is an arithmetic number, because the mean of its divisors is an integer number (23339160).

Almost surely, 2^210052305 is an apocalyptic number.

It is an amenable number.

210052305 is a deficient number, since it is larger than the sum of its proper divisors (163374255).

210052305 is a wasteful number, since it uses less digits than its factorization.

210052305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555957 (or 1555951 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 210052305 is about 14493.1813277831. The cubic root of 210052305 is about 594.4415398842.

The spelling of 210052305 in words is "two hundred ten million, fifty-two thousand, three hundred five".