5209809424252 has 48 divisors (see below), whose sum is σ = 9254782252800. Its totient is φ = 2565781574400.

The previous prime is 5209809424231. The next prime is 5209809424271. The reversal of 5209809424252 is 2524249089025.

It is a super-2 number, since 2×5209809424252² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5209809424252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290085649 + ... + 290103607.

It is an arithmetic number, because the mean of its divisors is an integer number (192807963600).

Almost surely, 2^{5209809424252} is an apocalyptic number.

It is an amenable number.

5209809424252 is a deficient number, since it is larger than the sum of its proper divisors (4044972828548).

5209809424252 is a wasteful number, since it uses less digits than its factorization.

5209809424252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20626 (or 20624 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 5209809424252 in words is "five trillion, two hundred nine billion, eight hundred nine million, four hundred twenty-four thousand, two hundred fifty-two".