20069775 has 120 divisors (see below), whose sum is σ = 43751664. Its totient is φ = 8985600.

The previous prime is 20069761. The next prime is 20069779. The reversal of 20069775 is 57796002.

It is not a de Polignac number, because 20069775 - 2⁵ = 20069743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20069779) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 378649 + ... + 378701.

Almost surely, 2^20069775 is an apocalyptic number.

20069775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20069775 is an abundant number, since it is smaller than the sum of its proper divisors (23681889).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20069775 is a wasteful number, since it uses less digits than its factorization.

20069775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 20069775 is about 4479.9302449927. The cubic root of 20069775 is about 271.7570594269.

It can be divided in two parts, 2006 and 9775, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 20069775 in words is "twenty million, sixty-nine thousand, seven hundred seventy-five".