47513513 has 8 divisors (see below), whose sum is σ = 50481480. Its totient is φ = 44634240.

The previous prime is 47513507. The next prime is 47513527. The reversal of 47513513 is 31531574.

It can be written as a sum of positive squares in 4 ways, for example, as 10156969 + 37356544 = 3187^2 + 6112^2 .

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 47513513 - 2⁴ = 47513497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47513503) 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, 21068 + ... + 23213.

It is an arithmetic number, because the mean of its divisors is an integer number (6310185).

Almost surely, 2^47513513 is an apocalyptic number.

It is an amenable number.

47513513 is a deficient number, since it is larger than the sum of its proper divisors (2967967).

47513513 is a wasteful number, since it uses less digits than its factorization.

47513513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44347.

The product of its digits is 6300, while the sum is 29.

The square root of 47513513 is about 6893.0046423893. The cubic root of 47513513 is about 362.1921616433.

The spelling of 47513513 in words is "forty-seven million, five hundred thirteen thousand, five hundred thirteen".