5225400665388 has 72 divisors (see below), whose sum is σ = 13919520625920. Its totient is φ = 1648265988960.

The previous prime is 5225400665239. The next prime is 5225400665423. The reversal of 5225400665388 is 8835660045225.

5225400665388 is a `hidden beast` number, since 5 + 2 + 2 + 5 + 40 + 0 + 66 + 538 + 8 = 666.

It is a super-2 number, since 2×5225400665388² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3699648 + ... + 4913063.

It is an arithmetic number, because the mean of its divisors is an integer number (193326675360).

Almost surely, 2^{5225400665388} is an apocalyptic number.

It is an amenable number.

5225400665388 is an abundant number, since it is smaller than the sum of its proper divisors (8694119960532).

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

5225400665388 is a wasteful number, since it uses less digits than its factorization.

5225400665388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8613627 (or 8613622 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 54.

The spelling of 5225400665388 in words is "five trillion, two hundred twenty-five billion, four hundred million, six hundred sixty-five thousand, three hundred eighty-eight".