20375713 has 4 divisors (see below), whose sum is σ = 20488468. Its totient is φ = 20262960.

The previous prime is 20375699. The next prime is 20375743. The reversal of 20375713 is 31757302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31757302 = 2 ⋅15878651.

It can be written as a sum of positive squares in 2 ways, for example, as 4915089 + 15460624 = 2217^2 + 3932^2 .

It is a cyclic number.

It is not a de Polignac number, because 20375713 - 2¹⁷ = 20244641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20375743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56106 + ... + 56467.

It is an arithmetic number, because the mean of its divisors is an integer number (5122117).

Almost surely, 2^20375713 is an apocalyptic number.

It is an amenable number.

20375713 is a deficient number, since it is larger than the sum of its proper divisors (112755).

20375713 is a wasteful number, since it uses less digits than its factorization.

20375713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112754.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 20375713 is about 4513.9464994614. The cubic root of 20375713 is about 273.1309644591.

It can be divided in two parts, 2037 and 5713, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 20375713 in words is "twenty million, three hundred seventy-five thousand, seven hundred thirteen".