5511257 has 4 divisors (see below), whose sum is σ = 5517876. Its totient is φ = 5504640.

The previous prime is 5511251. The next prime is 5511263. The reversal of 5511257 is 7521155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7521155 = 5 ⋅1504231.

It is an interprime number because it is at equal distance from previous prime (5511251) and next prime (5511263).

It can be written as a sum of positive squares in 2 ways, for example, as 5331481 + 179776 = 2309^2 + 424^2 .

It is a cyclic number.

It is not a de Polignac number, because 5511257 - 2⁸ = 5511001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5511251) 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, 1844 + ... + 3797.

It is an arithmetic number, because the mean of its divisors is an integer number (1379469).

Almost surely, 2^5511257 is an apocalyptic number.

It is an amenable number.

5511257 is a deficient number, since it is larger than the sum of its proper divisors (6619).

5511257 is an equidigital number, since it uses as much as digits as its factorization.

5511257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618.

The product of its digits is 1750, while the sum is 26.

The square root of 5511257 is about 2347.6066535943. The cubic root of 5511257 is about 176.6377623691.

The spelling of 5511257 in words is "five million, five hundred eleven thousand, two hundred fifty-seven".