525222303872 has 72 divisors (see below), whose sum is σ = 1217305566855. Its totient is φ = 225070675200.

The previous prime is 525222303871. The next prime is 525222303979. The reversal of 525222303872 is 278303222525.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 262611151936 + 262611151936 = 512456^2 + 512456^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=512456.

It is a super-2 number, since 2×525222303872² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (525222303871) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 57390497 + ... + 57399647.

Almost surely, 2^525222303872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525222303872

525222303872 is an abundant number, since it is smaller than the sum of its proper divisors (692083262983).

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

525222303872 is an frugal number, since it uses more digits than its factorization.

525222303872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18330 (or 9160 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 525222303872 in words is "five hundred twenty-five billion, two hundred twenty-two million, three hundred three thousand, eight hundred seventy-two".