5581322901 has 144 divisors (see below), whose sum is σ = 10867304448. Its totient is φ = 2829103200.

The previous prime is 5581322891. The next prime is 5581322953. The reversal of 5581322901 is 1092231855.

5581322901 is a `hidden beast` number, since 558 + 13 + 2 + 2 + 90 + 1 = 666.

It is not a de Polignac number, because 5581322901 - 2¹¹ = 5581320853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581322501) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5631516 + ... + 5632506.

It is an arithmetic number, because the mean of its divisors is an integer number (75467392).

Almost surely, 2^5581322901 is an apocalyptic number.

It is an amenable number.

5581322901 is a deficient number, since it is larger than the sum of its proper divisors (5285981547).

5581322901 is a wasteful number, since it uses less digits than its factorization.

5581322901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 5581322901 is about 74708.2518936161. The cubic root of 5581322901 is about 1773.8315818713.

The spelling of 5581322901 in words is "five billion, five hundred eighty-one million, three hundred twenty-two thousand, nine hundred one".