5621613245 has 4 divisors (see below), whose sum is σ = 6745935900. Its totient is φ = 4497290592.

The previous prime is 5621613181. The next prime is 5621613251. The reversal of 5621613245 is 5423161265.

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 3004574596 + 2617038649 = 54814^2 + 51157^2 .

It is a cyclic number.

It is not a de Polignac number, because 5621613245 - 2⁶ = 5621613181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562161320 + ... + 562161329.

It is an arithmetic number, because the mean of its divisors is an integer number (1686483975).

Almost surely, 2^5621613245 is an apocalyptic number.

It is an amenable number.

5621613245 is a deficient number, since it is larger than the sum of its proper divisors (1124322655).

5621613245 is a wasteful number, since it uses less digits than its factorization.

5621613245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124322654.

The product of its digits is 43200, while the sum is 35.

The square root of 5621613245 is about 74977.4182337589. The cubic root of 5621613245 is about 1778.0896524036.

The spelling of 5621613245 in words is "five billion, six hundred twenty-one million, six hundred thirteen thousand, two hundred forty-five".