2277551 has 2 divisors, whose sum is σ = 2277552. Its totient is φ = 2277550.

The previous prime is 2277547. The next prime is 2277553. The reversal of 2277551 is 1557722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2277551 - 2² = 2277547 is a prime.

Together with 2277553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2277553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1138775 + 1138776.

It is an arithmetic number, because the mean of its divisors is an integer number (1138776).

2^2277551 is an apocalyptic number.

2277551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2277551 is an equidigital number, since it uses as much as digits as its factorization.

2277551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4900, while the sum is 29.

The square root of 2277551 is about 1509.1557242379. The cubic root of 2277551 is about 131.5697461889.

The spelling of 2277551 in words is "two million, two hundred seventy-seven thousand, five hundred fifty-one".