55231567 has 2 divisors, whose sum is σ = 55231568. Its totient is φ = 55231566.

The previous prime is 55231559. The next prime is 55231577. The reversal of 55231567 is 76513255.

55231567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55231567 - 2³ = 55231559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55231577) 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, 27615783 + 27615784.

It is an arithmetic number, because the mean of its divisors is an integer number (27615784).

Almost surely, 2^55231567 is an apocalyptic number.

55231567 is a deficient number, since it is larger than the sum of its proper divisors (1).

55231567 is an equidigital number, since it uses as much as digits as its factorization.

55231567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 34.

The square root of 55231567 is about 7431.7943324610. The cubic root of 55231567 is about 380.8282189582.

The spelling of 55231567 in words is "fifty-five million, two hundred thirty-one thousand, five hundred sixty-seven".