2554604649 has 10 divisors (see below), whose sum is σ = 3816137930. Its totient is φ = 1703069712.

The previous prime is 2554604639. The next prime is 2554604681. The reversal of 2554604649 is 9464064552.

2554604649 is a `hidden beast` number, since 25 + 546 + 0 + 46 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2149991424 + 404613225 = 46368^2 + 20115^2 .

It is not a de Polignac number, because 2554604649 - 2⁵ = 2554604617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2554604639) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15769084 + ... + 15769245.

It is an arithmetic number, because the mean of its divisors is an integer number (381613793).

Almost surely, 2^2554604649 is an apocalyptic number.

It is an amenable number.

2554604649 is a deficient number, since it is larger than the sum of its proper divisors (1261533281).

2554604649 is an equidigital number, since it uses as much as digits as its factorization.

2554604649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31538341 (or 31538332 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The square root of 2554604649 is about 50543.0969470609. The cubic root of 2554604649 is about 1367.0190480264.

The spelling of 2554604649 in words is "two billion, five hundred fifty-four million, six hundred four thousand, six hundred forty-nine".