47455247 has 4 divisors (see below), whose sum is σ = 54234576. Its totient is φ = 40675920.

The previous prime is 47455237. The next prime is 47455253. The reversal of 47455247 is 74255474.

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

It is a cyclic number.

It is not a de Polignac number, because 47455247 - 2⁴ = 47455231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47455247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47455207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3389654 + ... + 3389667.

It is an arithmetic number, because the mean of its divisors is an integer number (13558644).

Almost surely, 2^47455247 is an apocalyptic number.

47455247 is a deficient number, since it is larger than the sum of its proper divisors (6779329).

47455247 is an equidigital number, since it uses as much as digits as its factorization.

47455247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779328.

The product of its digits is 156800, while the sum is 38.

The square root of 47455247 is about 6888.7768870824. The cubic root of 47455247 is about 362.0440485455.

The spelling of 47455247 in words is "forty-seven million, four hundred fifty-five thousand, two hundred forty-seven".