47543457 has 16 divisors (see below), whose sum is σ = 68398400. Its totient is φ = 29201472.

The previous prime is 47543443. The next prime is 47543459. The reversal of 47543457 is 75434574.

47543457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47543457 - 2⁶ = 47543393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

Its product of digits (235200) is a multiple of the sum of its prime divisors (2352).

It is not an unprimeable number, because it can be changed into a prime (47543459) 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 15 ways as a sum of consecutive naturals, for example, 29919 + ... + 31467.

It is an arithmetic number, because the mean of its divisors is an integer number (4274900).

Almost surely, 2^47543457 is an apocalyptic number.

It is an amenable number.

47543457 is a deficient number, since it is larger than the sum of its proper divisors (20854943).

47543457 is a wasteful number, since it uses less digits than its factorization.

47543457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352.

The product of its digits is 235200, while the sum is 39.

The square root of 47543457 is about 6895.1763574255. The cubic root of 47543457 is about 362.2682326657.

The spelling of 47543457 in words is "forty-seven million, five hundred forty-three thousand, four hundred fifty-seven".