206388325 has 24 divisors (see below), whose sum is σ = 300668256. Its totient is φ = 138552000.

The previous prime is 206388289. The next prime is 206388337. The reversal of 206388325 is 523883602.

206388325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 206388325 - 2⁷ = 206388197 is a prime.

It is a super-2 number, since 2×206388325² = 85192281392611250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25291 + ... + 32440.

It is an arithmetic number, because the mean of its divisors is an integer number (12527844).

Almost surely, 2^206388325 is an apocalyptic number.

206388325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206388325 is a deficient number, since it is larger than the sum of its proper divisors (94279931).

206388325 is a wasteful number, since it uses less digits than its factorization.

206388325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57765 (or 57760 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 206388325 is about 14366.2216675088. The cubic root of 206388325 is about 590.9649296883.

It can be divided in two parts, 206388 and 325, that multiplied together give a square (67076100 = 8190²).

The spelling of 206388325 in words is "two hundred six million, three hundred eighty-eight thousand, three hundred twenty-five".