2452664261 has 4 divisors (see below), whose sum is σ = 2456124300. Its totient is φ = 2449204224.

The previous prime is 2452664237. The next prime is 2452664311. The reversal of 2452664261 is 1624662542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1624662542 = 2 ⋅812331271.

It can be written as a sum of positive squares in 2 ways, for example, as 352275361 + 2100388900 = 18769^2 + 45830^2 .

It is a cyclic number.

It is not a de Polignac number, because 2452664261 - 2⁶ = 2452664197 is a prime.

It is a super-2 number, since 2×2452664261² = 12031123954373352242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2452664561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1728956 + ... + 1730373.

It is an arithmetic number, because the mean of its divisors is an integer number (614031075).

Almost surely, 2^2452664261 is an apocalyptic number.

It is an amenable number.

2452664261 is a deficient number, since it is larger than the sum of its proper divisors (3460039).

2452664261 is an equidigital number, since it uses as much as digits as its factorization.

2452664261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460038.

The product of its digits is 138240, while the sum is 38.

The square root of 2452664261 is about 49524.3804706328. The cubic root of 2452664261 is about 1348.5882381113.

The spelling of 2452664261 in words is "two billion, four hundred fifty-two million, six hundred sixty-four thousand, two hundred sixty-one".