2624530661 has 2 divisors, whose sum is σ = 2624530662. Its totient is φ = 2624530660.

The previous prime is 2624530651. The next prime is 2624530687. The reversal of 2624530661 is 1660354262.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2508106561 + 116424100 = 50081^2 + 10790^2 .

It is a cyclic number.

It is not a de Polignac number, because 2624530661 - 2²² = 2620336357 is a prime.

It is a super-2 number, since 2×2624530661² = 13776322381058193842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2624530651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312265330 + 1312265331.

It is an arithmetic number, because the mean of its divisors is an integer number (1312265331).

Almost surely, 2^2624530661 is an apocalyptic number.

It is an amenable number.

2624530661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2624530661 is an equidigital number, since it uses as much as digits as its factorization.

2624530661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2624530661 is about 51230.1733454026. The cubic root of 2624530661 is about 1379.3798692766.

The spelling of 2624530661 in words is "two billion, six hundred twenty-four million, five hundred thirty thousand, six hundred sixty-one".