20883775 has 12 divisors (see below), whose sum is σ = 28250424. Its totient is φ = 15188000.

The previous prime is 20883763. The next prime is 20883781. The reversal of 20883775 is 57738802.

It is not a de Polignac number, because 20883775 - 2⁵ = 20883743 is a prime.

It is a super-2 number, since 2×20883775² = 872264116501250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37696 + ... + 38245.

It is an arithmetic number, because the mean of its divisors is an integer number (2354202).

Almost surely, 2^20883775 is an apocalyptic number.

20883775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20883775 is a deficient number, since it is larger than the sum of its proper divisors (7366649).

20883775 is a wasteful number, since it uses less digits than its factorization.

20883775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75962 (or 75957 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 20883775 is about 4569.8769130032. The cubic root of 20883775 is about 275.3824980391.

The spelling of 20883775 in words is "twenty million, eight hundred eighty-three thousand, seven hundred seventy-five".