5052665621 has 4 divisors (see below), whose sum is σ = 5226895500. Its totient is φ = 4878435744.

The previous prime is 5052665567. The next prime is 5052665623. The reversal of 5052665621 is 1265662505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1265662505 = 5 ⋅253132501.

It can be written as a sum of positive squares in 2 ways, for example, as 794450596 + 4258215025 = 28186^2 + 65255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5052665621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5052665623) 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, 87114896 + ... + 87114953.

It is an arithmetic number, because the mean of its divisors is an integer number (1306723875).

Almost surely, 2^5052665621 is an apocalyptic number.

It is an amenable number.

5052665621 is a deficient number, since it is larger than the sum of its proper divisors (174229879).

5052665621 is a wasteful number, since it uses less digits than its factorization.

5052665621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174229878.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 5052665621 is about 71082.1047873514. The cubic root of 5052665621 is about 1715.9587859335.

The spelling of 5052665621 in words is "five billion, fifty-two million, six hundred sixty-five thousand, six hundred twenty-one".