5252663661 has 16 divisors (see below), whose sum is σ = 8008925184. Its totient is φ = 2999697264.

The previous prime is 5252663641. The next prime is 5252663747. The reversal of 5252663661 is 1663662525.

It is not a de Polignac number, because 5252663661 - 2⁵ = 5252663629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5252663641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40281 + ... + 110126.

It is an arithmetic number, because the mean of its divisors is an integer number (500557824).

Almost surely, 2^5252663661 is an apocalyptic number.

It is an amenable number.

5252663661 is a deficient number, since it is larger than the sum of its proper divisors (2756261523).

5252663661 is a wasteful number, since it uses less digits than its factorization.

5252663661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152080.

The product of its digits is 388800, while the sum is 42.

The square root of 5252663661 is about 72475.2624072518. The cubic root of 5252663661 is about 1738.3072078770.

The spelling of 5252663661 in words is "five billion, two hundred fifty-two million, six hundred sixty-three thousand, six hundred sixty-one".