6251761 has 2 divisors, whose sum is σ = 6251762. Its totient is φ = 6251760.

The previous prime is 6251759. The next prime is 6251771. The reversal of 6251761 is 1671526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5475600 + 776161 = 2340^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 6251761 - 2¹ = 6251759 is a prime.

It is a super-2 number, since 2×6251761² = 78169031202242, which contains 22 as substring.

Together with 6251759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6251711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3125880 + 3125881.

It is an arithmetic number, because the mean of its divisors is an integer number (3125881).

Almost surely, 2^6251761 is an apocalyptic number.

It is an amenable number.

6251761 is a deficient number, since it is larger than the sum of its proper divisors (1).

6251761 is an equidigital number, since it uses as much as digits as its factorization.

6251761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 6251761 is about 2500.3521751945. The cubic root of 6251761 is about 184.2188735194.

The spelling of 6251761 in words is "six million, two hundred fifty-one thousand, seven hundred sixty-one".