5615242621 has 8 divisors (see below), whose sum is σ = 5691461760. Its totient is φ = 5539463328.

The previous prime is 5615242573. The next prime is 5615242637. The reversal of 5615242621 is 1262425165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5615242621 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 (5615842621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84216 + ... + 135361.

It is an arithmetic number, because the mean of its divisors is an integer number (711432720).

Almost surely, 2^5615242621 is an apocalyptic number.

It is an amenable number.

5615242621 is a deficient number, since it is larger than the sum of its proper divisors (76219139).

5615242621 is a wasteful number, since it uses less digits than its factorization.

5615242621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219923.

The product of its digits is 28800, while the sum is 34.

The square root of 5615242621 is about 74934.9225728565. The cubic root of 5615242621 is about 1777.4177324553.

Adding to 5615242621 its reverse (1262425165), we get a palindrome (6877667786).

The spelling of 5615242621 in words is "five billion, six hundred fifteen million, two hundred forty-two thousand, six hundred twenty-one".