2755481 has 4 divisors (see below), whose sum is σ = 2775732. Its totient is φ = 2735232.

The previous prime is 2755471. The next prime is 2755499. The reversal of 2755481 is 1845572.

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

It can be written as a sum of positive squares in 2 ways, for example, as 781456 + 1974025 = 884^2 + 1405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2755481 is a prime.

It is a super-2 number, since 2×2755481² = 15185351082722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2755421) 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, 9920 + ... + 10193.

It is an arithmetic number, because the mean of its divisors is an integer number (693933).

2^2755481 is an apocalyptic number.

It is an amenable number.

2755481 is a deficient number, since it is larger than the sum of its proper divisors (20251).

2755481 is a wasteful number, since it uses less digits than its factorization.

2755481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20250.

The product of its digits is 11200, while the sum is 32.

The square root of 2755481 is about 1659.9641562395. The cubic root of 2755481 is about 140.1949834150.

Subtracting from 2755481 its reverse (1845572), we obtain a palindrome (909909).

The spelling of 2755481 in words is "two million, seven hundred fifty-five thousand, four hundred eighty-one".