20052797 has 4 divisors (see below), whose sum is σ = 20062560. Its totient is φ = 20043036.

The previous prime is 20052793. The next prime is 20052811. The reversal of 20052797 is 79725002.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20052797 - 2² = 20052793 is a prime.

It is a super-2 number, since 2×20052797² = 804229335046418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20052793) 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, 473 + ... + 6350.

It is an arithmetic number, because the mean of its divisors is an integer number (5015640).

Almost surely, 2^20052797 is an apocalyptic number.

It is an amenable number.

20052797 is a deficient number, since it is larger than the sum of its proper divisors (9763).

20052797 is an equidigital number, since it uses as much as digits as its factorization.

20052797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9762.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 20052797 is about 4478.0349485014. The cubic root of 20052797 is about 271.6804069648.

Adding to 20052797 its reverse (79725002), we get a palindrome (99777799).

The spelling of 20052797 in words is "twenty million, fifty-two thousand, seven hundred ninety-seven".