524072257 has 2 divisors, whose sum is σ = 524072258. Its totient is φ = 524072256.

The previous prime is 524072249. The next prime is 524072303. The reversal of 524072257 is 752270425.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442513296 + 81558961 = 21036^2 + 9031^2 .

It is a cyclic number.

It is not a de Polignac number, because 524072257 - 2³ = 524072249 is a prime.

It is not a weakly prime, because it can be changed into another prime (524072357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262036128 + 262036129.

It is an arithmetic number, because the mean of its divisors is an integer number (262036129).

Almost surely, 2^524072257 is an apocalyptic number.

It is an amenable number.

524072257 is a deficient number, since it is larger than the sum of its proper divisors (1).

524072257 is an equidigital number, since it uses as much as digits as its factorization.

524072257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 524072257 is about 22892.6245109642. The cubic root of 524072257 is about 806.2388532642.

The spelling of 524072257 in words is "five hundred twenty-four million, seventy-two thousand, two hundred fifty-seven".