20051079 has 16 divisors (see below), whose sum is σ = 27801600. Its totient is φ = 12840480.

The previous prime is 20051071. The next prime is 20051081. The reversal of 20051079 is 97015002.

It is not a de Polignac number, because 20051079 - 2³ = 20051071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13134 + ... + 14580.

It is an arithmetic number, because the mean of its divisors is an integer number (1737600).

Almost surely, 2^20051079 is an apocalyptic number.

20051079 is a deficient number, since it is larger than the sum of its proper divisors (7750521).

20051079 is a wasteful number, since it uses less digits than its factorization.

20051079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 20051079 is about 4477.8431191814. The cubic root of 20051079 is about 271.6726481092.

The spelling of 20051079 in words is "twenty million, fifty-one thousand, seventy-nine".