2554619149 has 2 divisors, whose sum is σ = 2554619150. Its totient is φ = 2554619148.

The previous prime is 2554619147. The next prime is 2554619167. The reversal of 2554619149 is 9419164552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1510876900 + 1043742249 = 38870^2 + 32307^2 .

It is a cyclic number.

It is not a de Polignac number, because 2554619149 - 2¹ = 2554619147 is a prime.

Together with 2554619147, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2554619099 and 2554619108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2554619143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277309574 + 1277309575.

It is an arithmetic number, because the mean of its divisors is an integer number (1277309575).

Almost surely, 2^2554619149 is an apocalyptic number.

It is an amenable number.

2554619149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2554619149 is an equidigital number, since it uses as much as digits as its factorization.

2554619149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 46.

The square root of 2554619149 is about 50543.2403887998. The cubic root of 2554619149 is about 1367.0216344329.

The spelling of 2554619149 in words is "two billion, five hundred fifty-four million, six hundred nineteen thousand, one hundred forty-nine".