20883475 has 12 divisors (see below), whose sum is σ = 26252536. Its totient is φ = 16476480.

The previous prime is 20883469. The next prime is 20883479. The reversal of 20883475 is 57438802.

It is not a de Polignac number, because 20883475 - 2⁷ = 20883347 is a prime.

It is a super-2 number, since 2×20883475² = 872239056151250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20883479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3897 + ... + 7546.

Almost surely, 2^20883475 is an apocalyptic number.

20883475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20883475 is a deficient number, since it is larger than the sum of its proper divisors (5369061).

20883475 is a wasteful number, since it uses less digits than its factorization.

20883475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11526 (or 11521 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 20883475 is about 4569.8440892442. The cubic root of 20883475 is about 275.3811793895.

The spelling of 20883475 in words is "twenty million, eight hundred eighty-three thousand, four hundred seventy-five".