5215430420 has 24 divisors (see below), whose sum is σ = 11219537448. Its totient is φ = 2035289600.

The previous prime is 5215430419. The next prime is 5215430431. The reversal of 5215430420 is 240345125.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 223442704 + 4991987716 = 14948^2 + 70654^2 .

It is a super-2 number, since 2×5215430420² = 54401428931722752800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5215430420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3179321 + ... + 3180960.

It is an arithmetic number, because the mean of its divisors is an integer number (467480727).

Almost surely, 2^5215430420 is an apocalyptic number.

It is an amenable number.

5215430420 is an abundant number, since it is smaller than the sum of its proper divisors (6004107028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5215430420 is a wasteful number, since it uses less digits than its factorization.

5215430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360331 (or 6360329 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 5215430420 is about 72217.9369685953. The cubic root of 5215430420 is about 1734.1901637376.

Adding to 5215430420 its reverse (240345125), we get a palindrome (5455775545).

The spelling of 5215430420 in words is "five billion, two hundred fifteen million, four hundred thirty thousand, four hundred twenty".