525231840 has 96 divisors (see below), whose sum is σ = 1890846720. Its totient is φ = 120052224.

The previous prime is 525231821. The next prime is 525231857. The reversal of 525231840 is 48132525.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 525231798 and 525231807.

It is a congruent number.

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, 74800 + ... + 81519.

It is an arithmetic number, because the mean of its divisors is an integer number (19696320).

Almost surely, 2^525231840 is an apocalyptic number.

It is an amenable number.

525231840 is an abundant number, since it is smaller than the sum of its proper divisors (1365614880).

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

525231840 is a wasteful number, since it uses less digits than its factorization.

525231840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156344 (or 156336 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 525231840 is about 22917.9370799381. The cubic root of 525231840 is about 806.8330538851.

The spelling of 525231840 in words is "five hundred twenty-five million, two hundred thirty-one thousand, eight hundred forty".