525240271 has 4 divisors (see below), whose sum is σ = 539435992. Its totient is φ = 511044552.

The previous prime is 525240253. The next prime is 525240277. The reversal of 525240271 is 172042525.

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

It is a cyclic number.

It is not a de Polignac number, because 525240271 - 2²⁵ = 491685839 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 (525240277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7097805 + ... + 7097878.

It is an arithmetic number, because the mean of its divisors is an integer number (134858998).

Almost surely, 2^525240271 is an apocalyptic number.

525240271 is a deficient number, since it is larger than the sum of its proper divisors (14195721).

525240271 is a wasteful number, since it uses less digits than its factorization.

525240271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14195720.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 525240271 is about 22918.1210180940. The cubic root of 525240271 is about 806.8373709458.

Adding to 525240271 its reverse (172042525), we get a palindrome (697282796).

The spelling of 525240271 in words is "five hundred twenty-five million, two hundred forty thousand, two hundred seventy-one".