20052497 has 8 divisors (see below), whose sum is σ = 20739456. Its totient is φ = 19377072.

The previous prime is 20052479. The next prime is 20052521. The reversal of 20052497 is 79425002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20052497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20052407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728 + ... + 6374.

It is an arithmetic number, because the mean of its divisors is an integer number (2592432).

Almost surely, 2^20052497 is an apocalyptic number.

It is an amenable number.

20052497 is a deficient number, since it is larger than the sum of its proper divisors (686959).

20052497 is an equidigital number, since it uses as much as digits as its factorization.

20052497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20052497 is about 4478.0014515406. The cubic root of 20052497 is about 271.6790521325.

Adding to 20052497 its reverse (79425002), we get a palindrome (99477499).

The spelling of 20052497 in words is "twenty million, fifty-two thousand, four hundred ninety-seven".