55504807 has 2 divisors, whose sum is σ = 55504808. Its totient is φ = 55504806.

The previous prime is 55504793. The next prime is 55504829. The reversal of 55504807 is 70840555.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55504807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55504837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752403 + 27752404.

It is an arithmetic number, because the mean of its divisors is an integer number (27752404).

Almost surely, 2^55504807 is an apocalyptic number.

55504807 is a deficient number, since it is larger than the sum of its proper divisors (1).

55504807 is an equidigital number, since it uses as much as digits as its factorization.

55504807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 55504807 is about 7450.1548306059. The cubic root of 55504807 is about 381.4551936004.

The spelling of 55504807 in words is "fifty-five million, five hundred four thousand, eight hundred seven".