525223291 has 2 divisors, whose sum is σ = 525223292. Its totient is φ = 525223290.

The previous prime is 525223271. The next prime is 525223373. The reversal of 525223291 is 192322525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525223291 - 2¹⁷ = 525092219 is a prime.

It is not a weakly prime, because it can be changed into another prime (525223201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262611645 + 262611646.

It is an arithmetic number, because the mean of its divisors is an integer number (262611646).

Almost surely, 2^525223291 is an apocalyptic number.

525223291 is a deficient number, since it is larger than the sum of its proper divisors (1).

525223291 is an equidigital number, since it uses as much as digits as its factorization.

525223291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 525223291 is about 22917.7505658823. The cubic root of 525223291 is about 806.8286763559.

The spelling of 525223291 in words is "five hundred twenty-five million, two hundred twenty-three thousand, two hundred ninety-one".