525323491 has 16 divisors (see below), whose sum is σ = 656340480. Its totient is φ = 408473280.

The previous prime is 525323467. The next prime is 525323497. The reversal of 525323491 is 194323525.

It is a cyclic number.

It is not a de Polignac number, because 525323491 - 2⁷ = 525323363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525323497) 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 15 ways as a sum of consecutive naturals, for example, 30495 + ... + 44503.

It is an arithmetic number, because the mean of its divisors is an integer number (41021280).

Almost surely, 2^525323491 is an apocalyptic number.

525323491 is a deficient number, since it is larger than the sum of its proper divisors (131016989).

525323491 is a wasteful number, since it uses less digits than its factorization.

525323491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14514.

The product of its digits is 32400, while the sum is 34.

The square root of 525323491 is about 22919.9365400518. The cubic root of 525323491 is about 806.8799809434.

Adding to 525323491 its sum of digits (34), we get a palindrome (525323525).

The spelling of 525323491 in words is "five hundred twenty-five million, three hundred twenty-three thousand, four hundred ninety-one".