6420049522 has 8 divisors (see below), whose sum is σ = 9962145900. Its totient is φ = 3099334224.

The previous prime is 6420049513. The next prime is 6420049523. The reversal of 6420049522 is 2259400246.

It can be written as a sum of positive squares in 2 ways, for example, as 6365007961 + 55041561 = 79781^2 + 7419^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6420049523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55345197 + ... + 55345312.

Almost surely, 2^6420049522 is an apocalyptic number.

6420049522 is a deficient number, since it is larger than the sum of its proper divisors (3542096378).

6420049522 is a wasteful number, since it uses less digits than its factorization.

6420049522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110690540.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 6420049522 is about 80125.2115254618. The cubic root of 6420049522 is about 1858.5722965071.

Adding to 6420049522 its reverse (2259400246), we get a palindrome (8679449768).

The spelling of 6420049522 in words is "six billion, four hundred twenty million, forty-nine thousand, five hundred twenty-two".