210053305 has 32 divisors (see below), whose sum is σ = 317260800. Its totient is φ = 129693120.

The previous prime is 210053297. The next prime is 210053353. The reversal of 210053305 is 503350012.

It is not a de Polignac number, because 210053305 - 2³ = 210053297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38646 + ... + 43744.

It is an arithmetic number, because the mean of its divisors is an integer number (9914400).

Almost surely, 2^210053305 is an apocalyptic number.

It is an amenable number.

210053305 is a deficient number, since it is larger than the sum of its proper divisors (107207495).

210053305 is a wasteful number, since it uses less digits than its factorization.

210053305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 210053305 is about 14493.2158267239. The cubic root of 210053305 is about 594.4424832057.

It can be divided in two parts, 21005 and 3305, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 210053305 in words is "two hundred ten million, fifty-three thousand, three hundred five".