20532707 has 4 divisors (see below), whose sum is σ = 22112160. Its totient is φ = 18953256.

The previous prime is 20532697. The next prime is 20532709. The reversal of 20532707 is 70723502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20532707 - 2¹⁴ = 20516323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20532709) 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, 789707 + ... + 789732.

It is an arithmetic number, because the mean of its divisors is an integer number (5528040).

Almost surely, 2^20532707 is an apocalyptic number.

20532707 is a deficient number, since it is larger than the sum of its proper divisors (1579453).

20532707 is a wasteful number, since it uses less digits than its factorization.

20532707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579452.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 20532707 is about 4531.3030134830. The cubic root of 20532707 is about 273.8306579670.

The spelling of 20532707 in words is "twenty million, five hundred thirty-two thousand, seven hundred seven".