5531625661 has 8 divisors (see below), whose sum is σ = 5662387584. Its totient is φ = 5401408320.

The previous prime is 5531625643. The next prime is 5531625703. The reversal of 5531625661 is 1665261355.

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

It is a cyclic number.

It is not a de Polignac number, because 5531625661 - 2¹¹ = 5531623613 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 (5531625601) 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 7 ways as a sum of consecutive naturals, for example, 115555 + ... + 156256.

It is an arithmetic number, because the mean of its divisors is an integer number (707798448).

Almost surely, 2^5531625661 is an apocalyptic number.

It is an amenable number.

5531625661 is a deficient number, since it is larger than the sum of its proper divisors (130761923).

5531625661 is a wasteful number, since it uses less digits than its factorization.

5531625661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272291.

The product of its digits is 162000, while the sum is 40.

The square root of 5531625661 is about 74374.8994016126. The cubic root of 5531625661 is about 1768.5510246673.

The spelling of 5531625661 in words is "five billion, five hundred thirty-one million, six hundred twenty-five thousand, six hundred sixty-one".