525021120 has 336 divisors, whose sum is σ = 2002596960. Its totient is φ = 125411328.

The previous prime is 525021097. The next prime is 525021121. The reversal of 525021120 is 21120525.

525021120 is a `hidden beast` number, since 52 + 502 + 112 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 525021093 and 525021102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525021121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1385091 + ... + 1385469.

It is an arithmetic number, because the mean of its divisors is an integer number (5960110).

Almost surely, 2^525021120 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 525021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1001298480).

525021120 is an abundant number, since it is smaller than the sum of its proper divisors (1477575840).

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

525021120 is a wasteful number, since it uses less digits than its factorization.

525021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 525021120 is about 22913.3393463284. The cubic root of 525021120 is about 806.7251405221.

Adding to 525021120 its reverse (21120525), we get a palindrome (546141645).

The spelling of 525021120 in words is "five hundred twenty-five million, twenty-one thousand, one hundred twenty".