2555499949 has 2 divisors, whose sum is σ = 2555499950. Its totient is φ = 2555499948.

The previous prime is 2555499941. The next prime is 2555499983. The reversal of 2555499949 is 9499945552.

2555499949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2412577924 + 142922025 = 49118^2 + 11955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555499949 - 2³ = 2555499941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555499941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277749974 + 1277749975.

It is an arithmetic number, because the mean of its divisors is an integer number (1277749975).

Almost surely, 2^2555499949 is an apocalyptic number.

It is an amenable number.

2555499949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555499949 is an equidigital number, since it uses as much as digits as its factorization.

2555499949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244000, while the sum is 61.

The square root of 2555499949 is about 50551.9529691979. The cubic root of 2555499949 is about 1367.1787269033.

The spelling of 2555499949 in words is "two billion, five hundred fifty-five million, four hundred ninety-nine thousand, nine hundred forty-nine".