525423091 has 2 divisors, whose sum is σ = 525423092. Its totient is φ = 525423090.

The previous prime is 525423089. The next prime is 525423133. The reversal of 525423091 is 190324525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525423091 - 2¹ = 525423089 is a prime.

Together with 525423089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (525424091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262711545 + 262711546.

It is an arithmetic number, because the mean of its divisors is an integer number (262711546).

Almost surely, 2^525423091 is an apocalyptic number.

525423091 is a deficient number, since it is larger than the sum of its proper divisors (1).

525423091 is an equidigital number, since it uses as much as digits as its factorization.

525423091 is an odious number, because the sum of its binary digits is odd.

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

The square root of 525423091 is about 22922.1092179581. The cubic root of 525423091 is about 806.9309718528.

The spelling of 525423091 in words is "five hundred twenty-five million, four hundred twenty-three thousand, ninety-one".