205525207 has 2 divisors, whose sum is σ = 205525208. Its totient is φ = 205525206.

The previous prime is 205525193. The next prime is 205525231. The reversal of 205525207 is 702525502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205525207 - 2¹¹ = 205523159 is a prime.

It is a super-2 number, since 2×205525207² = 84481221424785698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205525267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102762603 + 102762604.

It is an arithmetic number, because the mean of its divisors is an integer number (102762604).

Almost surely, 2^205525207 is an apocalyptic number.

205525207 is a deficient number, since it is larger than the sum of its proper divisors (1).

205525207 is an equidigital number, since it uses as much as digits as its factorization.

205525207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 205525207 is about 14336.1503549593. The cubic root of 205525207 is about 590.1399715784.

The spelling of 205525207 in words is "two hundred five million, five hundred twenty-five thousand, two hundred seven".