47545087 has 4 divisors (see below), whose sum is σ = 50047480. Its totient is φ = 45042696.

The previous prime is 47545051. The next prime is 47545097. The reversal of 47545087 is 78054574.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47545087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47545027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251168 + ... + 1251205.

It is an arithmetic number, because the mean of its divisors is an integer number (12511870).

Almost surely, 2^47545087 is an apocalyptic number.

47545087 is a deficient number, since it is larger than the sum of its proper divisors (2502393).

47545087 is a wasteful number, since it uses less digits than its factorization.

47545087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502392.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 47545087 is about 6895.2945549846. The cubic root of 47545087 is about 362.2723726709.

The spelling of 47545087 in words is "forty-seven million, five hundred forty-five thousand, eighty-seven".