4457117257 has 4 divisors (see below), whose sum is σ = 4565827476. Its totient is φ = 4348407040.

The previous prime is 4457117251. The next prime is 4457117267. The reversal of 4457117257 is 7527117544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59305401 + 4397811856 = 7701^2 + 66316^2 .

It is a cyclic number.

It is not a de Polignac number, because 4457117257 - 2⁷ = 4457117129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4457117251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54355048 + ... + 54355129.

It is an arithmetic number, because the mean of its divisors is an integer number (1141456869).

Almost surely, 2^4457117257 is an apocalyptic number.

It is an amenable number.

4457117257 is a deficient number, since it is larger than the sum of its proper divisors (108710219).

4457117257 is a wasteful number, since it uses less digits than its factorization.

4457117257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108710218.

The product of its digits is 274400, while the sum is 43.

The square root of 4457117257 is about 66761.6451040566. The cubic root of 4457117257 is about 1645.7025921245.

The spelling of 4457117257 in words is "four billion, four hundred fifty-seven million, one hundred seventeen thousand, two hundred fifty-seven".