206426625 has 16 divisors (see below), whose sum is σ = 343494528. Its totient is φ = 110094000.

The previous prime is 206426603. The next prime is 206426639. The reversal of 206426625 is 526624602.

It is not a de Polignac number, because 206426625 - 2⁵ = 206426593 is a prime.

It is a super-2 number, since 2×206426625² = 85223903017781250, which contains 22 as substring.

It is an unprimeable number.

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, 274861 + ... + 275610.

It is an arithmetic number, because the mean of its divisors is an integer number (21468408).

Almost surely, 2^206426625 is an apocalyptic number.

206426625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206426625 is a deficient number, since it is larger than the sum of its proper divisors (137067903).

206426625 is an equidigital number, since it uses as much as digits as its factorization.

206426625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550489 (or 550479 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 206426625 is about 14367.5545935973. The cubic root of 206426625 is about 591.0014830429.

The spelling of 206426625 in words is "two hundred six million, four hundred twenty-six thousand, six hundred twenty-five".