48018515 has 4 divisors (see below), whose sum is σ = 57622224. Its totient is φ = 38414808.

The previous prime is 48018493. The next prime is 48018541. The reversal of 48018515 is 51581084.

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 48018515 - 2²² = 43824211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4801847 + ... + 4801856.

It is an arithmetic number, because the mean of its divisors is an integer number (14405556).

Almost surely, 2^48018515 is an apocalyptic number.

48018515 is a deficient number, since it is larger than the sum of its proper divisors (9603709).

48018515 is an equidigital number, since it uses as much as digits as its factorization.

48018515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9603708.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 48018515 is about 6929.5393064763. The cubic root of 48018515 is about 363.4708403204.

Adding to 48018515 its reverse (51581084), we get a palindrome (99599599).

The spelling of 48018515 in words is "forty-eight million, eighteen thousand, five hundred fifteen".