20325763 has 4 divisors (see below), whose sum is σ = 21395560. Its totient is φ = 19255968.

The previous prime is 20325743. The next prime is 20325769. The reversal of 20325763 is 36752302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36752302 = 2 ⋅18376151.

It is not a de Polignac number, because 20325763 - 2¹³ = 20317571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20325769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534870 + ... + 534907.

It is an arithmetic number, because the mean of its divisors is an integer number (5348890).

Almost surely, 2^20325763 is an apocalyptic number.

20325763 is a deficient number, since it is larger than the sum of its proper divisors (1069797).

20325763 is a wasteful number, since it uses less digits than its factorization.

20325763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069796.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 20325763 is about 4508.4102519624. The cubic root of 20325763 is about 272.9075930502.

The spelling of 20325763 in words is "twenty million, three hundred twenty-five thousand, seven hundred sixty-three".