5632517661 has 4 divisors (see below), whose sum is σ = 7510023552. Its totient is φ = 3755011772.

The previous prime is 5632517651. The next prime is 5632517687. The reversal of 5632517661 is 1667152365.

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.

It is a cyclic number.

It is not a de Polignac number, because 5632517661 - 2⁵ = 5632517629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5632517651) 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, 938752941 + ... + 938752946.

It is an arithmetic number, because the mean of its divisors is an integer number (1877505888).

Almost surely, 2^5632517661 is an apocalyptic number.

It is an amenable number.

5632517661 is a deficient number, since it is larger than the sum of its proper divisors (1877505891).

5632517661 is a wasteful number, since it uses less digits than its factorization.

5632517661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877505890.

The product of its digits is 226800, while the sum is 42.

The square root of 5632517661 is about 75050.1010059280. The cubic root of 5632517661 is about 1779.2385815694.

The spelling of 5632517661 in words is "five billion, six hundred thirty-two million, five hundred seventeen thousand, six hundred sixty-one".