525144685172 has 12 divisors (see below), whose sum is σ = 925089314016. Its totient is φ = 260833452600.

The previous prime is 525144685141. The next prime is 525144685213. The reversal of 525144685172 is 271586441525.

It is a self number, because there is not a number n which added to its sum of digits gives 525144685172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434721818 + ... + 434723025.

It is an arithmetic number, because the mean of its divisors is an integer number (77090776168).

Almost surely, 2^525144685172 is an apocalyptic number.

It is an amenable number.

525144685172 is a deficient number, since it is larger than the sum of its proper divisors (399944628844).

525144685172 is a wasteful number, since it uses less digits than its factorization.

525144685172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869444998 (or 869444996 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 50.

The spelling of 525144685172 in words is "five hundred twenty-five billion, one hundred forty-four million, six hundred eighty-five thousand, one hundred seventy-two".