20562701 has 4 divisors (see below), whose sum is σ = 20587392. Its totient is φ = 20538012.

The previous prime is 20562679. The next prime is 20562709. The reversal of 20562701 is 10726502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20562701 - 2⁶ = 20562637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20562709) 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, 11051 + ... + 12776.

It is an arithmetic number, because the mean of its divisors is an integer number (5146848).

Almost surely, 2^20562701 is an apocalyptic number.

It is an amenable number.

20562701 is a deficient number, since it is larger than the sum of its proper divisors (24691).

20562701 is an equidigital number, since it uses as much as digits as its factorization.

20562701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24690.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 20562701 is about 4534.6114497275. The cubic root of 20562701 is about 273.9639295761.

The spelling of 20562701 in words is "twenty million, five hundred sixty-two thousand, seven hundred one".