4257075985 has 8 divisors (see below), whose sum is σ = 5109668136. Its totient is φ = 3404876160.

The previous prime is 4257075973. The next prime is 4257075997. The reversal of 4257075985 is 5895707524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4257075973) and next prime (4257075997).

It can be written as a sum of positive squares in 4 ways, for example, as 177315856 + 4079760129 = 13316^2 + 63873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4257075985 - 2²⁵ = 4223521553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73654 + ... + 118063.

It is an arithmetic number, because the mean of its divisors is an integer number (638708517).

Almost surely, 2^4257075985 is an apocalyptic number.

It is an amenable number.

4257075985 is a deficient number, since it is larger than the sum of its proper divisors (852592151).

4257075985 is a wasteful number, since it uses less digits than its factorization.

4257075985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196163.

The product of its (nonzero) digits is 3528000, while the sum is 52.

The square root of 4257075985 is about 65246.2718091999. The cubic root of 4257075985 is about 1620.7043608047.

The spelling of 4257075985 in words is "four billion, two hundred fifty-seven million, seventy-five thousand, nine hundred eighty-five".