205425078 has 16 divisors (see below), whose sum is σ = 412380720. Its totient is φ = 68219936.

The previous prime is 205425053. The next prime is 205425089. The reversal of 205425078 is 870524502.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62025 + ... + 65252.

It is an arithmetic number, because the mean of its divisors is an integer number (25773795).

Almost surely, 2^205425078 is an apocalyptic number.

205425078 is an abundant number, since it is smaller than the sum of its proper divisors (206955642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205425078 is a wasteful number, since it uses less digits than its factorization.

205425078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127551.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 205425078 is about 14332.6577437683. The cubic root of 205425078 is about 590.0441200368.

The spelling of 205425078 in words is "two hundred five million, four hundred twenty-five thousand, seventy-eight".