20052401 has 4 divisors (see below), whose sum is σ = 21231972. Its totient is φ = 18872832.

The previous prime is 20052397. The next prime is 20052407. The reversal of 20052401 is 10425002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17007376 + 3045025 = 4124^2 + 1745^2 .

It is a cyclic number.

It is not a de Polignac number, because 20052401 - 2² = 20052397 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 3 ways as a sum of consecutive naturals, for example, 589760 + ... + 589793.

It is an arithmetic number, because the mean of its divisors is an integer number (5307993).

Almost surely, 2^20052401 is an apocalyptic number.

It is an amenable number.

20052401 is a deficient number, since it is larger than the sum of its proper divisors (1179571).

20052401 is a wasteful number, since it uses less digits than its factorization.

20052401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179570.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 20052401 is about 4477.9907324603. The cubic root of 20052401 is about 271.6786185833.

Adding to 20052401 its reverse (10425002), we get a palindrome (30477403).

The spelling of 20052401 in words is "twenty million, fifty-two thousand, four hundred one".