47242545 has 16 divisors (see below), whose sum is σ = 86386560. Its totient is φ = 21596544.

The previous prime is 47242523. The next prime is 47242549. The reversal of 47242545 is 54524274.

47242545 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 47242545 - 2⁹ = 47242033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47242549) 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, 224860 + ... + 225069.

It is an arithmetic number, because the mean of its divisors is an integer number (5399160).

Almost surely, 2^47242545 is an apocalyptic number.

It is an amenable number.

47242545 is a deficient number, since it is larger than the sum of its proper divisors (39144015).

47242545 is a wasteful number, since it uses less digits than its factorization.

47242545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449944.

The product of its digits is 44800, while the sum is 33.

The square root of 47242545 is about 6873.3212495852. The cubic root of 47242545 is about 361.5023252817.

The spelling of 47242545 in words is "forty-seven million, two hundred forty-two thousand, five hundred forty-five".