2555951 has 2 divisors, whose sum is σ = 2555952. Its totient is φ = 2555950.

The previous prime is 2555911. The next prime is 2555957. The reversal of 2555951 is 1595552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2555951 - 2¹⁴ = 2539567 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277975 + 1277976.

It is an arithmetic number, because the mean of its divisors is an integer number (1277976).

2^2555951 is an apocalyptic number.

2555951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555951 is an equidigital number, since it uses as much as digits as its factorization.

2555951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11250, while the sum is 32.

The square root of 2555951 is about 1598.7341867865. The cubic root of 2555951 is about 136.7259158791.

The spelling of 2555951 in words is "two million, five hundred fifty-five thousand, nine hundred fifty-one".