5130622621 has 4 divisors (see below), whose sum is σ = 5131522044. Its totient is φ = 5129723200.

The previous prime is 5130622613. The next prime is 5130622631. The reversal of 5130622621 is 1262260315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2721187225 + 2409435396 = 52165^2 + 49086^2 .

It is a cyclic number.

It is not a de Polignac number, because 5130622621 - 2³ = 5130622613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5130622621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5130622631) 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, 441100 + ... + 452581.

It is an arithmetic number, because the mean of its divisors is an integer number (1282880511).

Almost surely, 2^5130622621 is an apocalyptic number.

It is an amenable number.

5130622621 is a deficient number, since it is larger than the sum of its proper divisors (899423).

5130622621 is an equidigital number, since it uses as much as digits as its factorization.

5130622621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899422.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 5130622621 is about 71628.3646399944. The cubic root of 5130622621 is about 1724.7388944291.

Adding to 5130622621 its reverse (1262260315), we get a palindrome (6392882936).

The spelling of 5130622621 in words is "five billion, one hundred thirty million, six hundred twenty-two thousand, six hundred twenty-one".