55872307 has 2 divisors, whose sum is σ = 55872308. Its totient is φ = 55872306.

The previous prime is 55872287. The next prime is 55872317. The reversal of 55872307 is 70327855.

55872307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55872307 - 2¹⁹ = 55348019 is a prime.

It is not a weakly prime, because it can be changed into another prime (55872317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27936153 + 27936154.

It is an arithmetic number, because the mean of its divisors is an integer number (27936154).

Almost surely, 2^55872307 is an apocalyptic number.

55872307 is a deficient number, since it is larger than the sum of its proper divisors (1).

55872307 is an equidigital number, since it uses as much as digits as its factorization.

55872307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 55872307 is about 7474.7780569058. The cubic root of 55872307 is about 382.2952201026.

The spelling of 55872307 in words is "fifty-five million, eight hundred seventy-two thousand, three hundred seven".