4257952591 has 4 divisors (see below), whose sum is σ = 4258256184. Its totient is φ = 4257649000.

The previous prime is 4257952499. The next prime is 4257952619. The reversal of 4257952591 is 1952597524.

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

It is a cyclic number.

It is not a de Polignac number, because 4257952591 - 2¹³ = 4257944399 is a prime.

It is a super-2 number, since 2×4257952591² = 36260320534407226562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4257952291) 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, 129685 + ... + 159166.

It is an arithmetic number, because the mean of its divisors is an integer number (1064564046).

Almost surely, 2^4257952591 is an apocalyptic number.

4257952591 is a deficient number, since it is larger than the sum of its proper divisors (303593).

4257952591 is a wasteful number, since it uses less digits than its factorization.

4257952591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303592.

The product of its digits is 1134000, while the sum is 49.

The square root of 4257952591 is about 65252.9891345983. The cubic root of 4257952591 is about 1620.8155969102.

The spelling of 4257952591 in words is "four billion, two hundred fifty-seven million, nine hundred fifty-two thousand, five hundred ninety-one".