525166459 has 2 divisors, whose sum is σ = 525166460. Its totient is φ = 525166458.

The previous prime is 525166451. The next prime is 525166511. The reversal of 525166459 is 954661525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525166459 - 2³ = 525166451 is a prime.

It is not a weakly prime, because it can be changed into another prime (525166451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262583229 + 262583230.

It is an arithmetic number, because the mean of its divisors is an integer number (262583230).

Almost surely, 2^525166459 is an apocalyptic number.

525166459 is a deficient number, since it is larger than the sum of its proper divisors (1).

525166459 is an equidigital number, since it uses as much as digits as its factorization.

525166459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324000, while the sum is 43.

The square root of 525166459 is about 22916.5106200748. The cubic root of 525166459 is about 806.7995742311.

It can be divided in two parts, 525166 and 459, that added together give a square (525625 = 725²).

The spelling of 525166459 in words is "five hundred twenty-five million, one hundred sixty-six thousand, four hundred fifty-nine".