525112216402 has 16 divisors (see below), whose sum is σ = 834032517912. Its totient is φ = 247102516480.

The previous prime is 525112216337. The next prime is 525112216417. The reversal of 525112216402 is 204612211525.

It can be written as a sum of positive squares in 4 ways, for example, as 522455741721 + 2656474681 = 722811^2 + 51541^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699828 + ... + 1240960.

Almost surely, 2^525112216402 is an apocalyptic number.

525112216402 is a deficient number, since it is larger than the sum of its proper divisors (308920301510).

525112216402 is a wasteful number, since it uses less digits than its factorization.

525112216402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569693.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 525112216402 its reverse (204612211525), we get a palindrome (729724427927).

The spelling of 525112216402 in words is "five hundred twenty-five billion, one hundred twelve million, two hundred sixteen thousand, four hundred two".