20529033 has 16 divisors (see below), whose sum is σ = 31589376. Its totient is φ = 11615760.

The previous prime is 20529031. The next prime is 20529053. The reversal of 20529033 is 33092502.

It is not a de Polignac number, because 20529033 - 2¹ = 20529031 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20528994 and 20529012.

It is not an unprimeable number, because it can be changed into a prime (20529031) 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, 2583 + ... + 6908.

It is an arithmetic number, because the mean of its divisors is an integer number (1974336).

Almost surely, 2^20529033 is an apocalyptic number.

It is an amenable number.

20529033 is a deficient number, since it is larger than the sum of its proper divisors (11060343).

20529033 is a wasteful number, since it uses less digits than its factorization.

20529033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9604.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 20529033 is about 4530.8975931928. The cubic root of 20529033 is about 273.8143244517.

The spelling of 20529033 in words is "twenty million, five hundred twenty-nine thousand, thirty-three".