52420403 has 4 divisors (see below), whose sum is σ = 59909040. Its totient is φ = 44931768.

The previous prime is 52420391. The next prime is 52420409. The reversal of 52420403 is 30402425.

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

It is not a de Polignac number, because 52420403 - 2¹⁴ = 52404019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52420409) 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, 3744308 + ... + 3744321.

It is an arithmetic number, because the mean of its divisors is an integer number (14977260).

Almost surely, 2^52420403 is an apocalyptic number.

52420403 is a deficient number, since it is larger than the sum of its proper divisors (7488637).

52420403 is an equidigital number, since it uses as much as digits as its factorization.

52420403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7488636.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 52420403 is about 7240.1935747603. The cubic root of 52420403 is about 374.2542881606.

Adding to 52420403 its reverse (30402425), we get a palindrome (82822828).

The spelling of 52420403 in words is "fifty-two million, four hundred twenty thousand, four hundred three".