525385868 has 48 divisors (see below), whose sum is σ = 1087511040. Its totient is φ = 217413504.

The previous prime is 525385859. The next prime is 525385879. The reversal of 525385868 is 868583525.

It is a super-2 number, since 2×525385868² = 552060620588226848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104705 + ... + 109607.

It is an arithmetic number, because the mean of its divisors is an integer number (22656480).

Almost surely, 2^525385868 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 525385868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543755520).

525385868 is an abundant number, since it is smaller than the sum of its proper divisors (562125172).

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

525385868 is a wasteful number, since it uses less digits than its factorization.

525385868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046 (or 5044 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 50.

The square root of 525385868 is about 22921.2972582269. The cubic root of 525385868 is about 806.9119160345.

The spelling of 525385868 in words is "five hundred twenty-five million, three hundred eighty-five thousand, eight hundred sixty-eight".