525502120 has 192 divisors, whose sum is σ = 1441981440. Its totient is φ = 170726400.

The previous prime is 525502099. The next prime is 525502139. The reversal of 525502120 is 21205525.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 525502091 and 525502100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2751225 + ... + 2751415.

It is an arithmetic number, because the mean of its divisors is an integer number (7510320).

Almost surely, 2^525502120 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 525502120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720990720).

525502120 is an abundant number, since it is smaller than the sum of its proper divisors (916479320).

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

525502120 is a wasteful number, since it uses less digits than its factorization.

525502120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 525502120 is about 22923.8330128275. The cubic root of 525502120 is about 806.9714267116.

Adding to 525502120 its reverse (21205525), we get a palindrome (546707645).

The spelling of 525502120 in words is "five hundred twenty-five million, five hundred two thousand, one hundred twenty".