20752027 has 4 divisors (see below), whose sum is σ = 21258216. Its totient is φ = 20245840.

The previous prime is 20752021. The next prime is 20752031. The reversal of 20752027 is 72025702.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20752027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20751992 and 20752010.

It is not an unprimeable number, because it can be changed into a prime (20752021) 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, 253033 + ... + 253114.

It is an arithmetic number, because the mean of its divisors is an integer number (5314554).

Almost surely, 2^20752027 is an apocalyptic number.

20752027 is a deficient number, since it is larger than the sum of its proper divisors (506189).

20752027 is an equidigital number, since it uses as much as digits as its factorization.

20752027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506188.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 20752027 is about 4555.4392762938. The cubic root of 20752027 is about 274.8021805991.

Adding to 20752027 its reverse (72025702), we get a palindrome (92777729).

The spelling of 20752027 in words is "twenty million, seven hundred fifty-two thousand, twenty-seven".