47256505 has 8 divisors (see below), whose sum is σ = 56903112. Its totient is φ = 37675008.

The previous prime is 47256497. The next prime is 47256509. The reversal of 47256505 is 50565274.

47256505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9753129 + 37503376 = 3123^2 + 6124^2 .

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 47256505 - 2³ = 47256497 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47256509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14664 + ... + 17593.

It is an arithmetic number, because the mean of its divisors is an integer number (7112889).

Almost surely, 2^47256505 is an apocalyptic number.

It is an amenable number.

47256505 is a deficient number, since it is larger than the sum of its proper divisors (9646607).

47256505 is a wasteful number, since it uses less digits than its factorization.

47256505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32555.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 47256505 is about 6874.3366952747. The cubic root of 47256505 is about 361.5379293152.

The spelling of 47256505 in words is "forty-seven million, two hundred fifty-six thousand, five hundred five".