2555551049 has 2 divisors, whose sum is σ = 2555551050. Its totient is φ = 2555551048.

The previous prime is 2555551007. The next prime is 2555551081. The reversal of 2555551049 is 9401555552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2055715600 + 499835449 = 45340^2 + 22357^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555551049 - 2¹² = 2555546953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2555550997 and 2555551015.

It is not a weakly prime, because it can be changed into another prime (2555551099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277775524 + 1277775525.

It is an arithmetic number, because the mean of its divisors is an integer number (1277775525).

Almost surely, 2^2555551049 is an apocalyptic number.

It is an amenable number.

2555551049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555551049 is an equidigital number, since it uses as much as digits as its factorization.

2555551049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225000, while the sum is 41.

The square root of 2555551049 is about 50552.4583873030. The cubic root of 2555551049 is about 1367.1878395843.

The spelling of 2555551049 in words is "two billion, five hundred fifty-five million, five hundred fifty-one thousand, forty-nine".