205070650 has 24 divisors (see below), whose sum is σ = 391743900. Its totient is φ = 79810560.

The previous prime is 205070641. The next prime is 205070659. The reversal of 205070650 is 56070502.

It is a happy number.

205070650 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (205070641) and next prime (205070659).

It can be written as a sum of positive squares in 6 ways, for example, as 176544369 + 28526281 = 13287^2 + 5341^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (205070659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53575 + ... + 57274.

Almost surely, 2^205070650 is an apocalyptic number.

205070650 is a deficient number, since it is larger than the sum of its proper divisors (186673250).

205070650 is a wasteful number, since it uses less digits than its factorization.

205070650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110898 (or 110893 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 205070650 is about 14320.2880557620. The cubic root of 205070650 is about 589.7045825484.

The spelling of 205070650 in words is "two hundred five million, seventy thousand, six hundred fifty".