2473604561 has 4 divisors (see below), whose sum is σ = 2558901300. Its totient is φ = 2388307824.

The previous prime is 2473604477. The next prime is 2473604587. The reversal of 2473604561 is 1654063742.

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 1136970961 + 1336633600 = 33719^2 + 36560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2473604561 is a prime.

It is a super-2 number, since 2×2473604561² = 12237439048400005442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2473684561) 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, 42648326 + ... + 42648383.

It is an arithmetic number, because the mean of its divisors is an integer number (639725325).

Almost surely, 2^2473604561 is an apocalyptic number.

It is an amenable number.

2473604561 is a deficient number, since it is larger than the sum of its proper divisors (85296739).

2473604561 is an equidigital number, since it uses as much as digits as its factorization.

2473604561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85296738.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2473604561 is about 49735.3451883065. The cubic root of 2473604561 is about 1352.4153488019.

The spelling of 2473604561 in words is "two billion, four hundred seventy-three million, six hundred four thousand, five hundred sixty-one".