2755380991 has 4 divisors (see below), whose sum is σ = 3005870184. Its totient is φ = 2504891800.

The previous prime is 2755380983. The next prime is 2755381001. The reversal of 2755380991 is 1990835572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2755380991 - 2³ = 2755380983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755380911) 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, 125244580 + ... + 125244601.

It is an arithmetic number, because the mean of its divisors is an integer number (751467546).

Almost surely, 2^2755380991 is an apocalyptic number.

2755380991 is a deficient number, since it is larger than the sum of its proper divisors (250489193).

2755380991 is a wasteful number, since it uses less digits than its factorization.

2755380991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250489192.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 2755380991 is about 52491.7230713567. The cubic root of 2755380991 is about 1401.9328728893.

The spelling of 2755380991 in words is "two billion, seven hundred fifty-five million, three hundred eighty thousand, nine hundred ninety-one".