47056515 has 16 divisors (see below), whose sum is σ = 82135296. Its totient is φ = 22815200.

The previous prime is 47056487. The next prime is 47056517. The reversal of 47056515 is 51565074.

It is not a de Polignac number, because 47056515 - 2⁹ = 47056003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (47056517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142431 + ... + 142760.

It is an arithmetic number, because the mean of its divisors is an integer number (5133456).

Almost surely, 2^47056515 is an apocalyptic number.

47056515 is a deficient number, since it is larger than the sum of its proper divisors (35078781).

47056515 is a wasteful number, since it uses less digits than its factorization.

47056515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285210.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 47056515 is about 6859.7751420874. The cubic root of 47056515 is about 361.0271974557.

The spelling of 47056515 in words is "forty-seven million, fifty-six thousand, five hundred fifteen".