20611058 has 16 divisors (see below), whose sum is σ = 33699456. Its totient is φ = 9397200.

The previous prime is 20611057. The next prime is 20611079. The reversal of 20611058 is 85011602.

It is not an unprimeable number, because it can be changed into a prime (20611057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2618 + ... + 6933.

It is an arithmetic number, because the mean of its divisors is an integer number (2106216).

Almost surely, 2^20611058 is an apocalyptic number.

20611058 is a deficient number, since it is larger than the sum of its proper divisors (13088398).

20611058 is a wasteful number, since it uses less digits than its factorization.

20611058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9649.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 20611058 is about 4539.9403079776. The cubic root of 20611058 is about 274.1785204217.

The spelling of 20611058 in words is "twenty million, six hundred eleven thousand, fifty-eight".