525521072 has 20 divisors (see below), whose sum is σ = 1024944816. Its totient is φ = 261019200.

The previous prime is 525520993. The next prime is 525521081. The reversal of 525521072 is 270125525.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106343 + ... + 111174.

Almost surely, 2^525521072 is an apocalyptic number.

It is an amenable number.

525521072 is a deficient number, since it is larger than the sum of its proper divisors (499423744).

525521072 is a wasteful number, since it uses less digits than its factorization.

525521072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217676 (or 217670 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 525521072 is about 22924.2463780164. The cubic root of 525521072 is about 806.9811276167.

Adding to 525521072 its reverse (270125525), we get a palindrome (795646597).

The spelling of 525521072 in words is "five hundred twenty-five million, five hundred twenty-one thousand, seventy-two".