47056457 has 16 divisors (see below), whose sum is σ = 55325952. Its totient is φ = 39191040.

The previous prime is 47056417. The next prime is 47056463. The reversal of 47056457 is 75465074.

It is not a de Polignac number, because 47056457 - 2⁸ = 47056201 is a prime.

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 47056457.

It is not an unprimeable number, because it can be changed into a prime (47056417) 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, 35633 + ... + 36929.

It is an arithmetic number, because the mean of its divisors is an integer number (3457872).

Almost surely, 2^47056457 is an apocalyptic number.

It is an amenable number.

47056457 is a deficient number, since it is larger than the sum of its proper divisors (8269495).

47056457 is a wasteful number, since it uses less digits than its factorization.

47056457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 47056457 is about 6859.7709145423. The cubic root of 47056457 is about 361.0270491264.

The spelling of 47056457 in words is "forty-seven million, fifty-six thousand, four hundred fifty-seven".