48515869 has 4 divisors (see below), whose sum is σ = 50188860. Its totient is φ = 46842880.

The previous prime is 48515867. The next prime is 48515881. The reversal of 48515869 is 96851584.

48515869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13410244 + 35105625 = 3662^2 + 5925^2 .

It is a cyclic number.

It is not a de Polignac number, because 48515869 - 2¹ = 48515867 is a prime.

It is a super-2 number, since 2×48515869² = 4707579089650322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48515861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836452 + ... + 836509.

It is an arithmetic number, because the mean of its divisors is an integer number (12547215).

Almost surely, 2^48515869 is an apocalyptic number.

It is an amenable number.

48515869 is a deficient number, since it is larger than the sum of its proper divisors (1672991).

48515869 is a wasteful number, since it uses less digits than its factorization.

48515869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672990.

The product of its digits is 345600, while the sum is 46.

The square root of 48515869 is about 6965.3333732134. Note that the first 4 decimals coincide. The cubic root of 48515869 is about 364.7214212621.

The spelling of 48515869 in words is "forty-eight million, five hundred fifteen thousand, eight hundred sixty-nine".