48315581 has 8 divisors (see below), whose sum is σ = 51227640. Its totient is φ = 45411328.

The previous prime is 48315569. The next prime is 48315583. The reversal of 48315581 is 18551384.

It can be written as a sum of positive squares in 4 ways, for example, as 34692100 + 13623481 = 5890^2 + 3691^2 .

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 48315581 - 2⁶ = 48315517 is a prime.

It is a super-2 number, since 2×48315581² = 4668790734735122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48315583) 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, 15155 + ... + 18063.

It is an arithmetic number, because the mean of its divisors is an integer number (6403455).

Almost surely, 2^48315581 is an apocalyptic number.

It is an amenable number.

48315581 is a deficient number, since it is larger than the sum of its proper divisors (2912059).

48315581 is a wasteful number, since it uses less digits than its factorization.

48315581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903.

The product of its digits is 19200, while the sum is 35.

The square root of 48315581 is about 6950.9410154309. The cubic root of 48315581 is about 364.2188360265.

The spelling of 48315581 in words is "forty-eight million, three hundred fifteen thousand, five hundred eighty-one".