525512200420 has 24 divisors (see below), whose sum is σ = 1151557170624. Its totient is φ = 201065537376.

The previous prime is 525512200289. The next prime is 525512200427. The reversal of 525512200420 is 24002215525.

It is not an unprimeable number, because it can be changed into a prime (525512200427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571208454 + ... + 571209373.

It is an arithmetic number, because the mean of its divisors is an integer number (47981548776).

Almost surely, 2^525512200420 is an apocalyptic number.

It is an amenable number.

525512200420 is an abundant number, since it is smaller than the sum of its proper divisors (626044970204).

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

525512200420 is a wasteful number, since it uses less digits than its factorization.

525512200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142417859 (or 1142417857 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 525512200420 its reverse (24002215525), we get a palindrome (549514415945).

The spelling of 525512200420 in words is "five hundred twenty-five billion, five hundred twelve million, two hundred thousand, four hundred twenty".