525572501 has 4 divisors (see below), whose sum is σ = 531477900. Its totient is φ = 519667104.

The previous prime is 525572497. The next prime is 525572521. The reversal of 525572501 is 105275525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 244171876 + 281400625 = 15626^2 + 16775^2 .

It is a cyclic number.

It is not a de Polignac number, because 525572501 - 2² = 525572497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525572521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2952566 + ... + 2952743.

It is an arithmetic number, because the mean of its divisors is an integer number (132869475).

Almost surely, 2^525572501 is an apocalyptic number.

It is an amenable number.

525572501 is a deficient number, since it is larger than the sum of its proper divisors (5905399).

525572501 is an equidigital number, since it uses as much as digits as its factorization.

525572501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905398.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 525572501 is about 22925.3680668381. The cubic root of 525572501 is about 807.0074512542.

The spelling of 525572501 in words is "five hundred twenty-five million, five hundred seventy-two thousand, five hundred one".