206625533 has 2 divisors, whose sum is σ = 206625534. Its totient is φ = 206625532.

The previous prime is 206625511. The next prime is 206625541. The reversal of 206625533 is 335526602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108951844 + 97673689 = 10438^2 + 9883^2 .

It is a cyclic number.

It is not a de Polignac number, because 206625533 - 2⁶ = 206625469 is a prime.

It is a super-2 number, since 2×206625533² = 85388221775068178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206625533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206625733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103312766 + 103312767.

It is an arithmetic number, because the mean of its divisors is an integer number (103312767).

Almost surely, 2^206625533 is an apocalyptic number.

It is an amenable number.

206625533 is a deficient number, since it is larger than the sum of its proper divisors (1).

206625533 is an equidigital number, since it uses as much as digits as its factorization.

206625533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 206625533 is about 14374.4750512845. The cubic root of 206625533 is about 591.1912473000.

The spelling of 206625533 in words is "two hundred six million, six hundred twenty-five thousand, five hundred thirty-three".