2552761 has 2 divisors, whose sum is σ = 2552762. Its totient is φ = 2552760.

The previous prime is 2552729. The next prime is 2552773. The reversal of 2552761 is 1672552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1838736 + 714025 = 1356^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2552761 - 2⁵ = 2552729 is a prime.

2552761 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2552461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276380 + 1276381.

It is an arithmetic number, because the mean of its divisors is an integer number (1276381).

2^2552761 is an apocalyptic number.

It is an amenable number.

2552761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2552761 is an equidigital number, since it uses as much as digits as its factorization.

2552761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 28.

The square root of 2552761 is about 1597.7362110186. The cubic root of 2552761 is about 136.6690111304.

The spelling of 2552761 in words is "two million, five hundred fifty-two thousand, seven hundred sixty-one".