5265147661 has 2 divisors, whose sum is σ = 5265147662. Its totient is φ = 5265147660.

The previous prime is 5265147653. The next prime is 5265147683. The reversal of 5265147661 is 1667415625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4182079561 + 1083068100 = 64669^2 + 32910^2 .

It is a cyclic number.

It is not a de Polignac number, because 5265147661 - 2³ = 5265147653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5265145661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2632573830 + 2632573831.

It is an arithmetic number, because the mean of its divisors is an integer number (2632573831).

Almost surely, 2^5265147661 is an apocalyptic number.

It is an amenable number.

5265147661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5265147661 is an equidigital number, since it uses as much as digits as its factorization.

5265147661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 5265147661 is about 72561.3372327164. The cubic root of 5265147661 is about 1739.6832625785.

The spelling of 5265147661 in words is "five billion, two hundred sixty-five million, one hundred forty-seven thousand, six hundred sixty-one".