47511047 has 2 divisors, whose sum is σ = 47511048. Its totient is φ = 47511046.

The previous prime is 47511043. The next prime is 47511067. The reversal of 47511047 is 74011574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47511047 - 2² = 47511043 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47511041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23755523 + 23755524.

It is an arithmetic number, because the mean of its divisors is an integer number (23755524).

Almost surely, 2^47511047 is an apocalyptic number.

47511047 is a deficient number, since it is larger than the sum of its proper divisors (1).

47511047 is an equidigital number, since it uses as much as digits as its factorization.

47511047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 47511047 is about 6892.8257630670. The cubic root of 47511047 is about 362.1858954868.

The spelling of 47511047 in words is "forty-seven million, five hundred eleven thousand, forty-seven".