5351612621 has 4 divisors (see below), whose sum is σ = 5382546972. Its totient is φ = 5320678272.

The previous prime is 5351612611. The next prime is 5351612633. The reversal of 5351612621 is 1262161535.

5351612621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4049413225 + 1302199396 = 63635^2 + 36086^2 .

It is a cyclic number.

It is not a de Polignac number, because 5351612621 - 2⁶ = 5351612557 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 (5351612611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15466916 + ... + 15467261.

It is an arithmetic number, because the mean of its divisors is an integer number (1345636743).

Almost surely, 2^5351612621 is an apocalyptic number.

It is an amenable number.

5351612621 is a deficient number, since it is larger than the sum of its proper divisors (30934351).

5351612621 is a wasteful number, since it uses less digits than its factorization.

5351612621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30934350.

The product of its digits is 10800, while the sum is 32.

The square root of 5351612621 is about 73154.7170112769. The cubic root of 5351612621 is about 1749.1547069793.

The spelling of 5351612621 in words is "five billion, three hundred fifty-one million, six hundred twelve thousand, six hundred twenty-one".