525223331 has 16 divisors (see below), whose sum is σ = 556028928. Its totient is φ = 495132000.

The previous prime is 525223291. The next prime is 525223373. The reversal of 525223331 is 133322525.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525223331 is a prime.

It is a super-2 number, since 2×525223331² = 551719094853471122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 525223331.

It is not an unprimeable number, because it can be changed into a prime (525223931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722090 + ... + 722816.

It is an arithmetic number, because the mean of its divisors is an integer number (34751808).

Almost surely, 2^525223331 is an apocalyptic number.

525223331 is a deficient number, since it is larger than the sum of its proper divisors (30805597).

525223331 is a wasteful number, since it uses less digits than its factorization.

525223331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its digits is 5400, while the sum is 26.

The square root of 525223331 is about 22917.7514385683. The cubic root of 525223331 is about 806.8286968381.

Adding to 525223331 its reverse (133322525), we get a palindrome (658545856).

The spelling of 525223331 in words is "five hundred twenty-five million, two hundred twenty-three thousand, three hundred thirty-one".