5591257 has 4 divisors (see below), whose sum is σ = 6390016. Its totient is φ = 4792500.

The previous prime is 5591233. The next prime is 5591269. The reversal of 5591257 is 7521955.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5591257 - 2¹⁵ = 5558489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5591207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399369 + ... + 399382.

It is an arithmetic number, because the mean of its divisors is an integer number (1597504).

Almost surely, 2^5591257 is an apocalyptic number.

It is an amenable number.

5591257 is a deficient number, since it is larger than the sum of its proper divisors (798759).

5591257 is an equidigital number, since it uses as much as digits as its factorization.

5591257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798758.

The product of its digits is 15750, while the sum is 34.

The square root of 5591257 is about 2364.5838957415. The cubic root of 5591257 is about 177.4883362037.

The spelling of 5591257 in words is "five million, five hundred ninety-one thousand, two hundred fifty-seven".