20764053 has 8 divisors (see below), whose sum is σ = 30761600. Its totient is φ = 13842684.

The previous prime is 20764049. The next prime is 20764057. The reversal of 20764053 is 35046702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20764049) and next prime (20764057).

It is not a de Polignac number, because 20764053 - 2² = 20764049 is a prime.

It is a super-2 number, since 2×20764053² = 862291793973618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 769039 = 20764053 / (2 + 0 + 7 + 6 + 4 + 0 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20764057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384493 + ... + 384546.

It is an arithmetic number, because the mean of its divisors is an integer number (3845200).

Almost surely, 2^20764053 is an apocalyptic number.

It is an amenable number.

20764053 is a deficient number, since it is larger than the sum of its proper divisors (9997547).

20764053 is an equidigital number, since it uses as much as digits as its factorization.

20764053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769048 (or 769042 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20764053 is about 4556.7590456376. The cubic root of 20764053 is about 274.8552538538.

The spelling of 20764053 in words is "twenty million, seven hundred sixty-four thousand, fifty-three".