20733051 has 16 divisors (see below), whose sum is σ = 28952064. Its totient is φ = 13172544.

The previous prime is 20733029. The next prime is 20733067. The reversal of 20733051 is 15033702.

It is a happy number.

It is not a de Polignac number, because 20733051 - 2¹⁷ = 20601979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20733751) 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, 33295 + ... + 33911.

It is an arithmetic number, because the mean of its divisors is an integer number (1809504).

Almost surely, 2^20733051 is an apocalyptic number.

20733051 is a deficient number, since it is larger than the sum of its proper divisors (8219013).

20733051 is a wasteful number, since it uses less digits than its factorization.

20733051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 20733051 is about 4553.3560150728. The cubic root of 20733051 is about 274.7183938210.

Adding to 20733051 its reverse (15033702), we get a palindrome (35766753).

The spelling of 20733051 in words is "twenty million, seven hundred thirty-three thousand, fifty-one".