20935003 has 4 divisors (see below), whose sum is σ = 21050848. Its totient is φ = 20819160.

The previous prime is 20934961. The next prime is 20935009. The reversal of 20935003 is 30053902.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20935003 - 2¹³ = 20926811 is a prime.

It is a super-2 number, since 2×20935003² = 876548701220018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20935009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57651 + ... + 58012.

It is an arithmetic number, because the mean of its divisors is an integer number (5262712).

Almost surely, 2^20935003 is an apocalyptic number.

20935003 is a deficient number, since it is larger than the sum of its proper divisors (115845).

20935003 is a wasteful number, since it uses less digits than its factorization.

20935003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115844.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 20935003 is about 4575.4784449279. The cubic root of 20935003 is about 275.6074857024.

Adding to 20935003 its reverse (30053902), we get a palindrome (50988905).

The spelling of 20935003 in words is "twenty million, nine hundred thirty-five thousand, three".