206256469 has 4 divisors (see below), whose sum is σ = 206868844. Its totient is φ = 205644096.

The previous prime is 206256437. The next prime is 206256481. The reversal of 206256469 is 964652602.

206256469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964652602 = 2 ⋅482326301.

It can be written as a sum of positive squares in 2 ways, for example, as 117180625 + 89075844 = 10825^2 + 9438^2 .

It is a cyclic number.

It is not a de Polignac number, because 206256469 - 2⁵ = 206256437 is a prime.

It is a super-2 number, since 2×206256469² = 85083462008695922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206256499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305682 + ... + 306355.

It is an arithmetic number, because the mean of its divisors is an integer number (51717211).

Almost surely, 2^206256469 is an apocalyptic number.

It is an amenable number.

206256469 is a deficient number, since it is larger than the sum of its proper divisors (612375).

206256469 is an equidigital number, since it uses as much as digits as its factorization.

206256469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612374.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 206256469 is about 14361.6318362504. The cubic root of 206256469 is about 590.8390522970.

The spelling of 206256469 in words is "two hundred six million, two hundred fifty-six thousand, four hundred sixty-nine".