5581632261 has 8 divisors (see below), whose sum is σ = 7833869920. Its totient is φ = 3525241392.

The previous prime is 5581632257. The next prime is 5581632271. The reversal of 5581632261 is 1622361855.

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

It is not a de Polignac number, because 5581632261 - 2² = 5581632257 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 (5581632271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48961630 + ... + 48961743.

It is an arithmetic number, because the mean of its divisors is an integer number (979233740).

Almost surely, 2^5581632261 is an apocalyptic number.

It is an amenable number.

5581632261 is a deficient number, since it is larger than the sum of its proper divisors (2252237659).

5581632261 is a wasteful number, since it uses less digits than its factorization.

5581632261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97923395.

The product of its digits is 86400, while the sum is 39.

The square root of 5581632261 is about 74710.3223189406. The cubic root of 5581632261 is about 1773.8643544123.

The spelling of 5581632261 in words is "five billion, five hundred eighty-one million, six hundred thirty-two thousand, two hundred sixty-one".