6420052 has 6 divisors (see below), whose sum is σ = 11235098. Its totient is φ = 3210024.

The previous prime is 6420041. The next prime is 6420053. The reversal of 6420052 is 2500246.

It can be written as a sum of positive squares in only one way, i.e., 6320196 + 99856 = 2514^2 + 316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802503 + ... + 802510.

Almost surely, 2^6420052 is an apocalyptic number.

It is an amenable number.

6420052 is a deficient number, since it is larger than the sum of its proper divisors (4815046).

6420052 is a wasteful number, since it uses less digits than its factorization.

6420052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605017 (or 1605015 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 6420052 is about 2533.7821532247. The cubic root of 6420052 is about 185.8572535630.

Adding to 6420052 its reverse (2500246), we get a palindrome (8920298).

The spelling of 6420052 in words is "six million, four hundred twenty thousand, fifty-two".