2501966969 has 2 divisors, whose sum is σ = 2501966970. Its totient is φ = 2501966968.

The previous prime is 2501966947. The next prime is 2501966989. The reversal of 2501966969 is 9696691052.

2501966969 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., 2382611344 + 119355625 = 48812^2 + 10925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2501966969 - 2¹⁶ = 2501901433 is a prime.

It is a super-2 number, since 2×2501966969² = 12519677427934093922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2501966969.

It is not a weakly prime, because it can be changed into another prime (2501966989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250983484 + 1250983485.

It is an arithmetic number, because the mean of its divisors is an integer number (1250983485).

Almost surely, 2^2501966969 is an apocalyptic number.

It is an amenable number.

2501966969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501966969 is an equidigital number, since it uses as much as digits as its factorization.

2501966969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The square root of 2501966969 is about 50019.6658225542. The cubic root of 2501966969 is about 1357.5646600075.

The spelling of 2501966969 in words is "two billion, five hundred one million, nine hundred sixty-six thousand, nine hundred sixty-nine".