20252079 has 8 divisors (see below), whose sum is σ = 30003120. Its totient is φ = 13501368.

The previous prime is 20252077. The next prime is 20252093. The reversal of 20252079 is 97025202.

It is a happy number.

It is not a de Polignac number, because 20252079 - 2¹ = 20252077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 750077 = 20252079 / (2 + 0 + 2 + 5 + 2 + 0 + 7 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375012 + ... + 375065.

It is an arithmetic number, because the mean of its divisors is an integer number (3750390).

Almost surely, 2^20252079 is an apocalyptic number.

20252079 is a deficient number, since it is larger than the sum of its proper divisors (9751041).

20252079 is an equidigital number, since it uses as much as digits as its factorization.

20252079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750086 (or 750080 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 20252079 is about 4500.2309940713. The cubic root of 20252079 is about 272.5774164913.

The spelling of 20252079 in words is "twenty million, two hundred fifty-two thousand, seventy-nine".