55535047 has 2 divisors, whose sum is σ = 55535048. Its totient is φ = 55535046.

The previous prime is 55535023. The next prime is 55535057. The reversal of 55535047 is 74053555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55535047 - 2²³ = 47146439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55535017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27767523 + 27767524.

It is an arithmetic number, because the mean of its divisors is an integer number (27767524).

Almost surely, 2^55535047 is an apocalyptic number.

55535047 is a deficient number, since it is larger than the sum of its proper divisors (1).

55535047 is an equidigital number, since it uses as much as digits as its factorization.

55535047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52500, while the sum is 34.

The square root of 55535047 is about 7452.1840422791. The cubic root of 55535047 is about 381.5244555344.

The spelling of 55535047 in words is "fifty-five million, five hundred thirty-five thousand, forty-seven".