5615071021 has 16 divisors (see below), whose sum is σ = 6597657088. Its totient is φ = 4678657200.

The previous prime is 5615071003. The next prime is 5615071057. The reversal of 5615071021 is 1201705165.

It is not a de Polignac number, because 5615071021 - 2¹⁷ = 5614939949 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 (5615071621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19306 + ... + 107716.

It is an arithmetic number, because the mean of its divisors is an integer number (412353568).

Almost surely, 2^5615071021 is an apocalyptic number.

It is an amenable number.

5615071021 is a deficient number, since it is larger than the sum of its proper divisors (982586067).

5615071021 is a wasteful number, since it uses less digits than its factorization.

5615071021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88672.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 5615071021 is about 74933.7775705990. Note that the first 3 decimals coincide. The cubic root of 5615071021 is about 1777.3996265004.

Adding to 5615071021 its reverse (1201705165), we get a palindrome (6816776186).

The spelling of 5615071021 in words is "five billion, six hundred fifteen million, seventy-one thousand, twenty-one".