525213320 has 32 divisors (see below), whose sum is σ = 1182951000. Its totient is φ = 209868288.

The previous prime is 525213277. The next prime is 525213343. The reversal of 525213320 is 23312525.

It can be written as a sum of positive squares in 4 ways, for example, as 524318404 + 894916 = 22898^2 + 946^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35702 + ... + 48218.

Almost surely, 2^525213320 is an apocalyptic number.

It is an amenable number.

525213320 is an abundant number, since it is smaller than the sum of its proper divisors (657737680).

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

525213320 is a wasteful number, since it uses less digits than its factorization.

525213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13577 (or 13573 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 525213320 is about 22917.5330260480. The cubic root of 525213320 is about 806.8235706293.

Adding to 525213320 its reverse (23312525), we get a palindrome (548525845).

The spelling of 525213320 in words is "five hundred twenty-five million, two hundred thirteen thousand, three hundred twenty".