205420526 has 16 divisors (see below), whose sum is σ = 315674496. Its totient is φ = 100224696.

The previous prime is 205420517. The next prime is 205420541. The reversal of 205420526 is 625024502.

It is a junction number, because it is equal to n+sod(n) for n = 205420495 and 205420504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7175 + ... + 21501.

It is an arithmetic number, because the mean of its divisors is an integer number (19729656).

Almost surely, 2^205420526 is an apocalyptic number.

205420526 is a deficient number, since it is larger than the sum of its proper divisors (110253970).

205420526 is a wasteful number, since it uses less digits than its factorization.

205420526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14503.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 205420526 is about 14332.4989447060. The cubic root of 205420526 is about 590.0397617558.

The spelling of 205420526 in words is "two hundred five million, four hundred twenty thousand, five hundred twenty-six".