457521503 has 2 divisors, whose sum is σ = 457521504. Its totient is φ = 457521502.

The previous prime is 457521433. The next prime is 457521523. The reversal of 457521503 is 305125754.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 457521503 - 2¹² = 457517407 is a prime.

It is a super-3 number, since 3×457521503³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 457521503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457521523) 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, 228760751 + 228760752.

It is an arithmetic number, because the mean of its divisors is an integer number (228760752).

Almost surely, 2^457521503 is an apocalyptic number.

457521503 is a deficient number, since it is larger than the sum of its proper divisors (1).

457521503 is an equidigital number, since it uses as much as digits as its factorization.

457521503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 457521503 is about 21389.7522893558. The cubic root of 457521503 is about 770.5553440201. Note that the first 3 decimals are identical.

The spelling of 457521503 in words is "four hundred fifty-seven million, five hundred twenty-one thousand, five hundred three".