5615535061 has 4 divisors (see below), whose sum is σ = 5615731692. Its totient is φ = 5615338432.

The previous prime is 5615535019. The next prime is 5615535071. The reversal of 5615535061 is 1605355165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1605355165 = 5 ⋅321071033.

It can be written as a sum of positive squares in 2 ways, for example, as 3080916036 + 2534619025 = 55506^2 + 50345^2 .

It is a cyclic number.

It is not a de Polignac number, because 5615535061 - 2²¹ = 5613437909 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 5615535061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5615535071) 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, 46306 + ... + 115651.

It is an arithmetic number, because the mean of its divisors is an integer number (1403932923).

Almost surely, 2^5615535061 is an apocalyptic number.

It is an amenable number.

5615535061 is a deficient number, since it is larger than the sum of its proper divisors (196631).

5615535061 is a wasteful number, since it uses less digits than its factorization.

5615535061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196630.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 5615535061 is about 74936.8738405867. The cubic root of 5615535061 is about 1777.4485876979.

The spelling of 5615535061 in words is "five billion, six hundred fifteen million, five hundred thirty-five thousand, sixty-one".