5617561061 has 4 divisors (see below), whose sum is σ = 6420069792. Its totient is φ = 4815052332.

The previous prime is 5617561031. The next prime is 5617561063. The reversal of 5617561061 is 1601657165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1601657165 = 5 ⋅320331433.

It is a cyclic number.

It is not a de Polignac number, because 5617561061 - 2⁶ = 5617560997 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 (5617561063) 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, 401254355 + ... + 401254368.

It is an arithmetic number, because the mean of its divisors is an integer number (1605017448).

Almost surely, 2^5617561061 is an apocalyptic number.

It is an amenable number.

5617561061 is a deficient number, since it is larger than the sum of its proper divisors (802508731).

5617561061 is an equidigital number, since it uses as much as digits as its factorization.

5617561061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802508730.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 5617561061 is about 74950.3906660933. The cubic root of 5617561061 is about 1777.6623208394.

The spelling of 5617561061 in words is "five billion, six hundred seventeen million, five hundred sixty-one thousand, sixty-one".