55819607 has 2 divisors, whose sum is σ = 55819608. Its totient is φ = 55819606.

The previous prime is 55819571. The next prime is 55819613. The reversal of 55819607 is 70691855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55819607 - 2¹⁶ = 55754071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55819667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27909803 + 27909804.

It is an arithmetic number, because the mean of its divisors is an integer number (27909804).

Almost surely, 2^55819607 is an apocalyptic number.

55819607 is a deficient number, since it is larger than the sum of its proper divisors (1).

55819607 is an equidigital number, since it uses as much as digits as its factorization.

55819607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 55819607 is about 7471.2520369748. The cubic root of 55819607 is about 382.1749858467.

The spelling of 55819607 in words is "fifty-five million, eight hundred nineteen thousand, six hundred seven".