47478545 has 16 divisors (see below), whose sum is σ = 58164480. Its totient is φ = 37196544.

The previous prime is 47478523. The next prime is 47478551. The reversal of 47478545 is 54587474.

47478545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 47478545 - 2²⁰ = 46429969 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47478496 and 47478505.

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 15 ways as a sum of consecutive naturals, for example, 79769 + ... + 80361.

It is an arithmetic number, because the mean of its divisors is an integer number (3635280).

Almost surely, 2^47478545 is an apocalyptic number.

It is an amenable number.

47478545 is a deficient number, since it is larger than the sum of its proper divisors (10685935).

47478545 is a wasteful number, since it uses less digits than its factorization.

47478545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904.

The product of its digits is 627200, while the sum is 44.

The square root of 47478545 is about 6890.4676909481. The cubic root of 47478545 is about 362.1032869704.

The spelling of 47478545 in words is "forty-seven million, four hundred seventy-eight thousand, five hundred forty-five".