205616452 has 12 divisors (see below), whose sum is σ = 359996140. Its totient is φ = 102760416.

The previous prime is 205616449. The next prime is 205616471. The reversal of 205616452 is 254616502.

It can be written as a sum of positive squares in 2 ways, for example, as 59351616 + 146264836 = 7704^2 + 12094^2 .

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 3 ways as a sum of consecutive naturals, for example, 1203 + ... + 20314.

Almost surely, 2^205616452 is an apocalyptic number.

It is an amenable number.

205616452 is a deficient number, since it is larger than the sum of its proper divisors (154379688).

205616452 is a wasteful number, since it uses less digits than its factorization.

205616452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23910 (or 23908 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 205616452 is about 14339.3323415004. The cubic root of 205616452 is about 590.2272915326.

Subtracting 205616452 from its reverse (254616502), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 205616452 in words is "two hundred five million, six hundred sixteen thousand, four hundred fifty-two".