205620572 has 12 divisors (see below), whose sum is σ = 359955960. Its totient is φ = 102776016.

The previous prime is 205620557. The next prime is 205620577. The reversal of 205620572 is 275026502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205620577) by changing a digit.

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, 8879 + ... + 22137.

It is an arithmetic number, because the mean of its divisors is an integer number (29996330).

Almost surely, 2^205620572 is an apocalyptic number.

It is an amenable number.

205620572 is a deficient number, since it is larger than the sum of its proper divisors (154335388).

205620572 is a wasteful number, since it uses less digits than its factorization.

205620572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17140 (or 17138 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 205620572 is about 14339.4760015839. The cubic root of 205620572 is about 590.2312336948.

The spelling of 205620572 in words is "two hundred five million, six hundred twenty thousand, five hundred seventy-two".