2584900561 has 2 divisors, whose sum is σ = 2584900562. Its totient is φ = 2584900560.

The previous prime is 2584900553. The next prime is 2584900583. The reversal of 2584900561 is 1650094852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2416705600 + 168194961 = 49160^2 + 12969^2 .

It is a cyclic number.

It is not a de Polignac number, because 2584900561 - 2³ = 2584900553 is a prime.

It is a super-2 number, since 2×2584900561² = 13363421820516229442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2584903561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1292450280 + 1292450281.

It is an arithmetic number, because the mean of its divisors is an integer number (1292450281).

Almost surely, 2^2584900561 is an apocalyptic number.

It is an amenable number.

2584900561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2584900561 is an equidigital number, since it uses as much as digits as its factorization.

2584900561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 2584900561 is about 50841.9173615630. The cubic root of 2584900561 is about 1372.4018040282.

The spelling of 2584900561 in words is "two billion, five hundred eighty-four million, nine hundred thousand, five hundred sixty-one".