205625406 has 16 divisors (see below), whose sum is σ = 470001024. Its totient is φ = 58750104.

The previous prime is 205625393. The next prime is 205625417. The reversal of 205625406 is 604526502.

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, 2447880 + ... + 2447963.

It is an arithmetic number, because the mean of its divisors is an integer number (29375064).

Almost surely, 2^205625406 is an apocalyptic number.

205625406 is an abundant number, since it is smaller than the sum of its proper divisors (264375618).

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

205625406 is a wasteful number, since it uses less digits than its factorization.

205625406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895855.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 205625406 is about 14339.6445562643. The cubic root of 205625406 is about 590.2358589704.

The spelling of 205625406 in words is "two hundred five million, six hundred twenty-five thousand, four hundred six".