21060033 has 8 divisors (see below), whose sum is σ = 28182528. Its totient is φ = 13988784.

The previous prime is 21060023. The next prime is 21060049. The reversal of 21060033 is 33006012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21060033 - 2⁵ = 21060001 is a prime.

It is a super-2 number, since 2×21060033² = 887049979922178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21059994 and 21060021.

It is not an unprimeable number, because it can be changed into a prime (21060023) 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, 11841 + ... + 13502.

It is an arithmetic number, because the mean of its divisors is an integer number (3522816).

Almost surely, 2^21060033 is an apocalyptic number.

It is an amenable number.

21060033 is a deficient number, since it is larger than the sum of its proper divisors (7122495).

21060033 is a wasteful number, since it uses less digits than its factorization.

21060033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25623.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 21060033 is about 4589.1211576946. The cubic root of 21060033 is about 276.1550667159.

Adding to 21060033 its reverse (33006012), we get a palindrome (54066045).

The spelling of 21060033 in words is "twenty-one million, sixty thousand, thirty-three".