2555280749 has 8 divisors (see below), whose sum is σ = 3047291520. Its totient is φ = 2095012656.

The previous prime is 2555280731. The next prime is 2555280751. The reversal of 2555280749 is 9470825552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2555280749 - 2¹⁶ = 2555215213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555280769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7935494 + ... + 7935815.

It is an arithmetic number, because the mean of its divisors is an integer number (380911440).

Almost surely, 2^2555280749 is an apocalyptic number.

It is an amenable number.

2555280749 is a deficient number, since it is larger than the sum of its proper divisors (492010771).

2555280749 is a wasteful number, since it uses less digits than its factorization.

2555280749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15871339.

The product of its (nonzero) digits is 1008000, while the sum is 47.

The square root of 2555280749 is about 50549.7848561198. The cubic root of 2555280749 is about 1367.1396355120.

The spelling of 2555280749 in words is "two billion, five hundred fifty-five million, two hundred eighty thousand, seven hundred forty-nine".