47581165057 has 4 divisors (see below), whose sum is σ = 47582346240. Its totient is φ = 47579983876.

The previous prime is 47581165007. The next prime is 47581165069. The reversal of 47581165057 is 75056118574.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47581165057 - 2⁷ = 47581164929 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47581165057.

It is not an unprimeable number, because it can be changed into a prime (47581165007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527953 + ... + 611470.

It is an arithmetic number, because the mean of its divisors is an integer number (11895586560).

Almost surely, 2^47581165057 is an apocalyptic number.

It is an amenable number.

47581165057 is a deficient number, since it is larger than the sum of its proper divisors (1181183).

47581165057 is a wasteful number, since it uses less digits than its factorization.

47581165057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181182.

The product of its (nonzero) digits is 1176000, while the sum is 49.

The spelling of 47581165057 in words is "forty-seven billion, five hundred eighty-one million, one hundred sixty-five thousand, fifty-seven".