525169872 has 80 divisors (see below), whose sum is σ = 1516361280. Its totient is φ = 174019968.

The previous prime is 525169859. The next prime is 525169877. The reversal of 525169872 is 278961525.

525169872 is a `hidden beast` number, since 52 + 516 + 9 + 87 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525169877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71223 + ... + 78249.

It is an arithmetic number, because the mean of its divisors is an integer number (18954516).

Almost surely, 2^525169872 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 525169872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758180640).

525169872 is an abundant number, since it is smaller than the sum of its proper divisors (991191408).

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

525169872 is a wasteful number, since it uses less digits than its factorization.

525169872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217 (or 7205 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 525169872 is about 22916.5850859154. The cubic root of 525169872 is about 806.8013219950.

The spelling of 525169872 in words is "five hundred twenty-five million, one hundred sixty-nine thousand, eight hundred seventy-two".