2477612561 has 2 divisors, whose sum is σ = 2477612562. Its totient is φ = 2477612560.

The previous prime is 2477612503. The next prime is 2477612581. The reversal of 2477612561 is 1652167742.

2477612561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2223688336 + 253924225 = 47156^2 + 15935^2 .

It is a cyclic number.

It is not a de Polignac number, because 2477612561 - 2¹⁸ = 2477350417 is a prime.

It is a super-2 number, since 2×2477612561² = 12277128004849957442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2477612581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1238806280 + 1238806281.

It is an arithmetic number, because the mean of its divisors is an integer number (1238806281).

Almost surely, 2^2477612561 is an apocalyptic number.

It is an amenable number.

2477612561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2477612561 is an equidigital number, since it uses as much as digits as its factorization.

2477612561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The square root of 2477612561 is about 49775.6221558305. The cubic root of 2477612561 is about 1353.1453975495.

The spelling of 2477612561 in words is "two billion, four hundred seventy-seven million, six hundred twelve thousand, five hundred sixty-one".