2254678549 has 4 divisors (see below), whose sum is σ = 2276568736. Its totient is φ = 2232788364.

The previous prime is 2254678541. The next prime is 2254678571. The reversal of 2254678549 is 9458764522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2254678549 - 2³ = 2254678541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2254678496 and 2254678505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2254678541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10944939 + ... + 10945144.

It is an arithmetic number, because the mean of its divisors is an integer number (569142184).

Almost surely, 2^2254678549 is an apocalyptic number.

It is an amenable number.

2254678549 is a deficient number, since it is larger than the sum of its proper divisors (21890187).

2254678549 is a wasteful number, since it uses less digits than its factorization.

2254678549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21890186.

The product of its digits is 4838400, while the sum is 52.

The square root of 2254678549 is about 47483.4555292683. The cubic root of 2254678549 is about 1311.2783103136.

The spelling of 2254678549 in words is "two billion, two hundred fifty-four million, six hundred seventy-eight thousand, five hundred forty-nine".