20260975 has 12 divisors (see below), whose sum is σ = 28712944. Its totient is φ = 13893120.

The previous prime is 20260963. The next prime is 20260979. The reversal of 20260975 is 57906202.

It is not a de Polignac number, because 20260975 - 2⁹ = 20260463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260979) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 57714 + ... + 58063.

Almost surely, 2^20260975 is an apocalyptic number.

20260975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20260975 is a deficient number, since it is larger than the sum of its proper divisors (8451969).

20260975 is a wasteful number, since it uses less digits than its factorization.

20260975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115794 (or 115789 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 20260975 is about 4501.2192792620. The cubic root of 20260975 is about 272.6173217563.

The spelling of 20260975 in words is "twenty million, two hundred sixty thousand, nine hundred seventy-five".