525383449 has 2 divisors, whose sum is σ = 525383450. Its totient is φ = 525383448.

The previous prime is 525383447. The next prime is 525383477. The reversal of 525383449 is 944383525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521894025 + 3489424 = 22845^2 + 1868^2 .

It is a cyclic number.

It is not a de Polignac number, because 525383449 - 2¹ = 525383447 is a prime.

Together with 525383447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (525383447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262691724 + 262691725.

It is an arithmetic number, because the mean of its divisors is an integer number (262691725).

Almost surely, 2^525383449 is an apocalyptic number.

It is an amenable number.

525383449 is a deficient number, since it is larger than the sum of its proper divisors (1).

525383449 is an equidigital number, since it uses as much as digits as its factorization.

525383449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The square root of 525383449 is about 22921.2444906467. The cubic root of 525383449 is about 806.9106776286.

The spelling of 525383449 in words is "five hundred twenty-five million, three hundred eighty-three thousand, four hundred forty-nine".