20575275 has 24 divisors (see below), whose sum is σ = 38878464. Its totient is φ = 9405600.

The previous prime is 20575259. The next prime is 20575301. The reversal of 20575275 is 57257502.

It is not a de Polignac number, because 20575275 - 2⁴ = 20575259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19071 + ... + 20120.

It is an arithmetic number, because the mean of its divisors is an integer number (1619936).

Almost surely, 2^20575275 is an apocalyptic number.

20575275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20575275 is a deficient number, since it is larger than the sum of its proper divisors (18303189).

20575275 is a wasteful number, since it uses less digits than its factorization.

20575275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39211 (or 39206 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 20575275 is about 4535.9976851846. The cubic root of 20575275 is about 274.0197607714.

The spelling of 20575275 in words is "twenty million, five hundred seventy-five thousand, two hundred seventy-five".