48815779 has 4 divisors (see below), whose sum is σ = 48843360. Its totient is φ = 48788200.

The previous prime is 48815777. The next prime is 48815783. The reversal of 48815779 is 97751884.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48815779 - 2¹ = 48815777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48815773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10939 + ... + 14740.

It is an arithmetic number, because the mean of its divisors is an integer number (12210840).

Almost surely, 2^48815779 is an apocalyptic number.

48815779 is a deficient number, since it is larger than the sum of its proper divisors (27581).

48815779 is a wasteful number, since it uses less digits than its factorization.

48815779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27580.

The product of its digits is 564480, while the sum is 49.

The square root of 48815779 is about 6986.8289659902. The cubic root of 48815779 is about 365.4714094123.

It can be divided in two parts, 48815 and 779, that added together give a palindrome (49594).

The spelling of 48815779 in words is "forty-eight million, eight hundred fifteen thousand, seven hundred seventy-nine".