2555046787 has 2 divisors, whose sum is σ = 2555046788. Its totient is φ = 2555046786.

The previous prime is 2555046761. The next prime is 2555046821. The reversal of 2555046787 is 7876405552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2555046787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2555046787.

It is not a weakly prime, because it can be changed into another prime (2555046707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277523393 + 1277523394.

It is an arithmetic number, because the mean of its divisors is an integer number (1277523394).

Almost surely, 2^2555046787 is an apocalyptic number.

2555046787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555046787 is an equidigital number, since it uses as much as digits as its factorization.

2555046787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352000, while the sum is 49.

The square root of 2555046787 is about 50547.4706291027. The cubic root of 2555046787 is about 1367.0979090486.

The spelling of 2555046787 in words is "two billion, five hundred fifty-five million, forty-six thousand, seven hundred eighty-seven".