206511052 has 24 divisors (see below), whose sum is σ = 394747920. Its totient is φ = 93749760.

The previous prime is 206511037. The next prime is 206511079. The reversal of 206511052 is 250115602.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38724 + ... + 43732.

It is an arithmetic number, because the mean of its divisors is an integer number (16447830).

Almost surely, 2^206511052 is an apocalyptic number.

206511052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206511052 is a deficient number, since it is larger than the sum of its proper divisors (188236868).

206511052 is a wasteful number, since it uses less digits than its factorization.

206511052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961 (or 5959 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 206511052 is about 14370.4924063165. The cubic root of 206511052 is about 591.0820438415.

Adding to 206511052 its reverse (250115602), we get a palindrome (456626654).

The spelling of 206511052 in words is "two hundred six million, five hundred eleven thousand, fifty-two".