525249497 has 2 divisors, whose sum is σ = 525249498. Its totient is φ = 525249496.

The previous prime is 525249469. The next prime is 525249499. The reversal of 525249497 is 794942525.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 506205001 + 19044496 = 22499^2 + 4364^2 .

It is a cyclic number.

It is not a de Polignac number, because 525249497 - 2¹² = 525245401 is a prime.

Together with 525249499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (525249499) 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 as a sum of consecutive naturals, namely, 262624748 + 262624749.

It is an arithmetic number, because the mean of its divisors is an integer number (262624749).

Almost surely, 2^525249497 is an apocalyptic number.

It is an amenable number.

525249497 is a deficient number, since it is larger than the sum of its proper divisors (1).

525249497 is an equidigital number, since it uses as much as digits as its factorization.

525249497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 47.

The square root of 525249497 is about 22918.3222989817. The cubic root of 525249497 is about 806.8420950301.

The spelling of 525249497 in words is "five hundred twenty-five million, two hundred forty-nine thousand, four hundred ninety-seven".