47418545 has 4 divisors (see below), whose sum is σ = 56902260. Its totient is φ = 37934832.

The previous prime is 47418523. The next prime is 47418563. The reversal of 47418545 is 54581474.

47418545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30780304 + 16638241 = 5548^2 + 4079^2 .

It is a cyclic number.

It is not a de Polignac number, because 47418545 - 2¹⁴ = 47402161 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 47418499 and 47418508.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4741850 + ... + 4741859.

It is an arithmetic number, because the mean of its divisors is an integer number (14225565).

Almost surely, 2^47418545 is an apocalyptic number.

It is an amenable number.

47418545 is a deficient number, since it is larger than the sum of its proper divisors (9483715).

47418545 is an equidigital number, since it uses as much as digits as its factorization.

47418545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9483714.

The product of its digits is 89600, while the sum is 38.

The square root of 47418545 is about 6886.1124736676. The cubic root of 47418545 is about 361.9506892328.

The spelling of 47418545 in words is "forty-seven million, four hundred eighteen thousand, five hundred forty-five".