524981 has 2 divisors, whose sum is σ = 524982. Its totient is φ = 524980.

The previous prime is 524971. The next prime is 524983. The reversal of 524981 is 189425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372100 + 152881 = 610^2 + 391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-524981 is a prime.

It is a super-2 number, since 2×524981² = 551210100722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 524983, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 524981.

It is not a weakly prime, because it can be changed into another prime (524983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262490 + 262491.

It is an arithmetic number, because the mean of its divisors is an integer number (262491).

2⁵²⁴⁹⁸¹ is an apocalyptic number.

It is an amenable number.

524981 is a deficient number, since it is larger than the sum of its proper divisors (1).

524981 is an equidigital number, since it uses as much as digits as its factorization.

524981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 524981 is about 724.5557259452. Note that the first 3 decimals coincide. The cubic root of 524981 is about 80.6704591103.

The spelling of 524981 in words is "five hundred twenty-four thousand, nine hundred eighty-one".