55535947 has 4 divisors (see below), whose sum is σ = 55550880. Its totient is φ = 55521016.

The previous prime is 55535939. The next prime is 55535951. The reversal of 55535947 is 74953555.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55535947 - 2³ = 55535939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55535047) 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, 3054 + ... + 10972.

It is an arithmetic number, because the mean of its divisors is an integer number (13887720).

Almost surely, 2^55535947 is an apocalyptic number.

55535947 is a deficient number, since it is larger than the sum of its proper divisors (14933).

55535947 is an equidigital number, since it uses as much as digits as its factorization.

55535947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14932.

The product of its digits is 472500, while the sum is 43.

The square root of 55535947 is about 7452.2444270166. The cubic root of 55535947 is about 381.5265165161.

The spelling of 55535947 in words is "fifty-five million, five hundred thirty-five thousand, nine hundred forty-seven".