2512263661 has 2 divisors, whose sum is σ = 2512263662. Its totient is φ = 2512263660.

The previous prime is 2512263659. The next prime is 2512263697. The reversal of 2512263661 is 1663622152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1495291561 + 1016972100 = 38669^2 + 31890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2512263661 - 2¹ = 2512263659 is a prime.

It is a super-2 number, since 2×2512263661² = 12622937404762245842, which contains 22 as substring.

Together with 2512263659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2512264661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256131830 + 1256131831.

It is an arithmetic number, because the mean of its divisors is an integer number (1256131831).

Almost surely, 2^2512263661 is an apocalyptic number.

It is an amenable number.

2512263661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2512263661 is an equidigital number, since it uses as much as digits as its factorization.

2512263661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 2512263661 is about 50122.4865803763. The cubic root of 2512263661 is about 1359.4244358406.

The spelling of 2512263661 in words is "two billion, five hundred twelve million, two hundred sixty-three thousand, six hundred sixty-one".