527207521 has 3 divisors (see below), whose sum is σ = 527230483. Its totient is φ = 527184560.

The previous prime is 527207491. The next prime is 527207531. The reversal of 527207521 is 125702725.

The square root of 527207521 is 22961.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 364389921 + 162817600 = 19089^2 + 12760^2 .

It is not a de Polignac number, because 527207521 - 2⁷ = 527207393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (527207531) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11481 + ... + 34441.

Almost surely, 2^527207521 is an apocalyptic number.

527207521 is the 22961-st square number.

527207521 is the 11481-st centered octagonal number.

It is an amenable number.

527207521 is a deficient number, since it is larger than the sum of its proper divisors (22962).

527207521 is an frugal number, since it uses more digits than its factorization.

527207521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45922 (or 22961 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The cubic root of 527207521 is about 807.8434332336.

The spelling of 527207521 in words is "five hundred twenty-seven million, two hundred seven thousand, five hundred twenty-one".