20575235 has 16 divisors (see below), whose sum is σ = 25486272. Its totient is φ = 15936000.

The previous prime is 20575211. The next prime is 20575241. The reversal of 20575235 is 53257502.

It is not a de Polignac number, because 20575235 - 2⁶ = 20575171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20575198 and 20575207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33935 + ... + 34535.

It is an arithmetic number, because the mean of its divisors is an integer number (1592892).

Almost surely, 2^20575235 is an apocalyptic number.

20575235 is a deficient number, since it is larger than the sum of its proper divisors (4911037).

20575235 is a wasteful number, since it uses less digits than its factorization.

20575235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 20575235 is about 4535.9932760091. The cubic root of 20575235 is about 274.0195831990.

The spelling of 20575235 in words is "twenty million, five hundred seventy-five thousand, two hundred thirty-five".