20776053 has 16 divisors (see below), whose sum is σ = 28921536. Its totient is φ = 13253760.

The previous prime is 20776043. The next prime is 20776069. The reversal of 20776053 is 35067702.

It is not a de Polignac number, because 20776053 - 2⁴ = 20776037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20776053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20776033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4926 + ... + 8112.

It is an arithmetic number, because the mean of its divisors is an integer number (1807596).

Almost surely, 2^20776053 is an apocalyptic number.

It is an amenable number.

20776053 is a deficient number, since it is larger than the sum of its proper divisors (8145483).

20776053 is a wasteful number, since it uses less digits than its factorization.

20776053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 20776053 is about 4558.0755807687. The cubic root of 20776053 is about 274.9081919431.

The spelling of 20776053 in words is "twenty million, seven hundred seventy-six thousand, fifty-three".