48815931 has 8 divisors (see below), whose sum is σ = 65203024. Its totient is φ = 32486400.

The previous prime is 48815927. The next prime is 48815933. The reversal of 48815931 is 13951884.

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

It is not a de Polignac number, because 48815931 - 2² = 48815927 is a prime.

It is a super-2 number, since 2×48815931² = 4765990238793522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48815931.

It is not an unprimeable number, because it can be changed into a prime (48815933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12370 + ... + 15831.

It is an arithmetic number, because the mean of its divisors is an integer number (8150378).

Almost surely, 2^48815931 is an apocalyptic number.

48815931 is a deficient number, since it is larger than the sum of its proper divisors (16387093).

48815931 is a wasteful number, since it uses less digits than its factorization.

48815931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28781.

The product of its digits is 34560, while the sum is 39.

The square root of 48815931 is about 6986.8398435917. The cubic root of 48815931 is about 365.4717887404.

The spelling of 48815931 in words is "forty-eight million, eight hundred fifteen thousand, nine hundred thirty-one".