5217542628 has 12 divisors (see below), whose sum is σ = 12174266160. Its totient is φ = 1739180872.

The previous prime is 5217542623. The next prime is 5217542639. The reversal of 5217542628 is 8262457125.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 5217542628.

It is not an unprimeable number, because it can be changed into a prime (5217542623) 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, 217397598 + ... + 217397621.

It is an arithmetic number, because the mean of its divisors is an integer number (1014522180).

Almost surely, 2^5217542628 is an apocalyptic number.

It is an amenable number.

5217542628 is an abundant number, since it is smaller than the sum of its proper divisors (6956723532).

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

5217542628 is a wasteful number, since it uses less digits than its factorization.

5217542628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434795226 (or 434795224 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 5217542628 is about 72232.5593344165. The cubic root of 5217542628 is about 1734.4242432326.

The spelling of 5217542628 in words is "five billion, two hundred seventeen million, five hundred forty-two thousand, six hundred twenty-eight".