5540257 has 2 divisors, whose sum is σ = 5540258. Its totient is φ = 5540256.

The previous prime is 5540251. The next prime is 5540273. The reversal of 5540257 is 7520455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4393216 + 1147041 = 2096^2 + 1071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5540257 is a prime.

It is not a weakly prime, because it can be changed into another prime (5540251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770128 + 2770129.

It is an arithmetic number, because the mean of its divisors is an integer number (2770129).

Almost surely, 2^5540257 is an apocalyptic number.

It is an amenable number.

5540257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5540257 is an equidigital number, since it uses as much as digits as its factorization.

5540257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 5540257 is about 2353.7750529734. The cubic root of 5540257 is about 176.9470406637.

The spelling of 5540257 in words is "five million, five hundred forty thousand, two hundred fifty-seven".