47451745 has 32 divisors (see below), whose sum is σ = 64235520. Its totient is φ = 33359040.

The previous prime is 47451707. The next prime is 47451769. The reversal of 47451745 is 54715474.

It is not a de Polignac number, because 47451745 - 2⁷ = 47451617 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 291034 + ... + 291196.

It is an arithmetic number, because the mean of its divisors is an integer number (2007360).

Almost surely, 2^47451745 is an apocalyptic number.

It is an amenable number.

47451745 is a deficient number, since it is larger than the sum of its proper divisors (16783775).

47451745 is a wasteful number, since it uses less digits than its factorization.

47451745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its digits is 78400, while the sum is 37.

The square root of 47451745 is about 6888.5227008409. The cubic root of 47451745 is about 362.0351425444.

The spelling of 47451745 in words is "forty-seven million, four hundred fifty-one thousand, seven hundred forty-five".