47552447 has 2 divisors, whose sum is σ = 47552448. Its totient is φ = 47552446.

The previous prime is 47552441. The next prime is 47552471. The reversal of 47552447 is 74425574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47552447 - 2¹⁶ = 47486911 is a prime.

It is a super-2 number, since 2×47552447² = 4522470431375618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47552447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47552441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23776223 + 23776224.

It is an arithmetic number, because the mean of its divisors is an integer number (23776224).

Almost surely, 2^47552447 is an apocalyptic number.

47552447 is a deficient number, since it is larger than the sum of its proper divisors (1).

47552447 is an equidigital number, since it uses as much as digits as its factorization.

47552447 is an evil number, because the sum of its binary digits is even.

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

The square root of 47552447 is about 6895.8282316195. The cubic root of 47552447 is about 362.2910650130.

The spelling of 47552447 in words is "forty-seven million, five hundred fifty-two thousand, four hundred forty-seven".