2546480281 has 4 divisors (see below), whose sum is σ = 2546680500. Its totient is φ = 2546280064.

The previous prime is 2546480207. The next prime is 2546480291. The reversal of 2546480281 is 1820846452.

It is a happy number.

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 724471056 + 1822009225 = 26916^2 + 42685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2546480281 - 2¹⁵ = 2546447513 is a prime.

It is a super-2 number, since 2×2546480281² = 12969123643043677922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2546480291) 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, 79636 + ... + 106933.

It is an arithmetic number, because the mean of its divisors is an integer number (636670125).

Almost surely, 2^2546480281 is an apocalyptic number.

It is an amenable number.

2546480281 is a deficient number, since it is larger than the sum of its proper divisors (200219).

2546480281 is a wasteful number, since it uses less digits than its factorization.

2546480281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200218.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 2546480281 is about 50462.6622464570. The cubic root of 2546480281 is about 1365.5683394994.

The spelling of 2546480281 in words is "two billion, five hundred forty-six million, four hundred eighty thousand, two hundred eighty-one".