20276775 has 36 divisors (see below), whose sum is σ = 36569832. Its totient is φ = 10739520.

The previous prime is 20276761. The next prime is 20276807. The reversal of 20276775 is 57767202.

It is not a de Polignac number, because 20276775 - 2²² = 16082471 is a prime.

It is a super-2 number, since 2×20276775² = 822295208801250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 50877 + ... + 51273.

Almost surely, 2^20276775 is an apocalyptic number.

20276775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20276775 is a deficient number, since it is larger than the sum of its proper divisors (16293057).

20276775 is a wasteful number, since it uses less digits than its factorization.

20276775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 20276775 is about 4502.9740172468. The cubic root of 20276775 is about 272.6881678781.

The spelling of 20276775 in words is "twenty million, two hundred seventy-six thousand, seven hundred seventy-five".