20252973 has 8 divisors (see below), whose sum is σ = 29081248. Its totient is φ = 12463344.

The previous prime is 20252959. The next prime is 20252983. The reversal of 20252973 is 37925202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20252973 - 2⁵ = 20252941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20252973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259615 + ... + 259692.

It is an arithmetic number, because the mean of its divisors is an integer number (3635156).

Almost surely, 2^20252973 is an apocalyptic number.

It is an amenable number.

20252973 is a deficient number, since it is larger than the sum of its proper divisors (8828275).

20252973 is a wasteful number, since it uses less digits than its factorization.

20252973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519323.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 20252973 is about 4500.3303212098. The cubic root of 20252973 is about 272.5814272833.

The spelling of 20252973 in words is "twenty million, two hundred fifty-two thousand, nine hundred seventy-three".