20528695 has 16 divisors (see below), whose sum is σ = 27247392. Its totient is φ = 14722560.

The previous prime is 20528689. The next prime is 20528701. The reversal of 20528695 is 59682502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20528689) and next prime (20528701).

It is not a de Polignac number, because 20528695 - 2³ = 20528687 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1459 + ... + 6571.

It is an arithmetic number, because the mean of its divisors is an integer number (1702962).

Almost surely, 2^20528695 is an apocalyptic number.

20528695 is a deficient number, since it is larger than the sum of its proper divisors (6718697).

20528695 is a wasteful number, since it uses less digits than its factorization.

20528695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 20528695 is about 4530.8602935866. The cubic root of 20528695 is about 273.8128217060.

It can be divided in two parts, 205 and 28695, that added together give a square (28900 = 170²).

The spelling of 20528695 in words is "twenty million, five hundred twenty-eight thousand, six hundred ninety-five".