20052445 has 8 divisors (see below), whose sum is σ = 27500544. Its totient is φ = 13750224.

The previous prime is 20052437. The next prime is 20052457. The reversal of 20052445 is 54425002.

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

It is a cyclic number.

It is not a de Polignac number, because 20052445 - 2³ = 20052437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286429 + ... + 286498.

It is an arithmetic number, because the mean of its divisors is an integer number (3437568).

Almost surely, 2^20052445 is an apocalyptic number.

It is an amenable number.

20052445 is a deficient number, since it is larger than the sum of its proper divisors (7448099).

20052445 is an equidigital number, since it uses as much as digits as its factorization.

20052445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572939.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20052445 is about 4477.9956453753. The cubic root of 20052445 is about 271.6788172935.

Adding to 20052445 its reverse (54425002), we get a palindrome (74477447).

The spelling of 20052445 in words is "twenty million, fifty-two thousand, four hundred forty-five".