457025749 has 2 divisors, whose sum is σ = 457025750. Its totient is φ = 457025748.

The previous prime is 457025747. The next prime is 457025759. The reversal of 457025749 is 947520754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365956900 + 91068849 = 19130^2 + 9543^2 .

It is a cyclic number.

It is not a de Polignac number, because 457025749 - 2¹ = 457025747 is a prime.

It is a super-2 number, since 2×457025749² = 417745070498022002, which contains 22 as substring.

Together with 457025747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457025743) 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, 228512874 + 228512875.

It is an arithmetic number, because the mean of its divisors is an integer number (228512875).

Almost surely, 2^457025749 is an apocalyptic number.

It is an amenable number.

457025749 is a deficient number, since it is larger than the sum of its proper divisors (1).

457025749 is an equidigital number, since it uses as much as digits as its factorization.

457025749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 457025749 is about 21378.1605616573. The cubic root of 457025749 is about 770.2769279962.

The spelling of 457025749 in words is "four hundred fifty-seven million, twenty-five thousand, seven hundred forty-nine".