525212291 has 4 divisors (see below), whose sum is σ = 548047632. Its totient is φ = 502376952.

The previous prime is 525212267. The next prime is 525212293. The reversal of 525212291 is 192212525.

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 525212291 - 2⁶ = 525212227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525212293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11417636 + ... + 11417681.

It is an arithmetic number, because the mean of its divisors is an integer number (137011908).

Almost surely, 2^525212291 is an apocalyptic number.

525212291 is a deficient number, since it is larger than the sum of its proper divisors (22835341).

525212291 is a wasteful number, since it uses less digits than its factorization.

525212291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22835340.

The product of its digits is 3600, while the sum is 29.

The square root of 525212291 is about 22917.5105759766. The cubic root of 525212291 is about 806.8230437183.

The spelling of 525212291 in words is "five hundred twenty-five million, two hundred twelve thousand, two hundred ninety-one".