55680379 has 2 divisors, whose sum is σ = 55680380. Its totient is φ = 55680378.

The previous prime is 55680367. The next prime is 55680409. The reversal of 55680379 is 97308655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55680379 - 2⁵ = 55680347 is a prime.

It is not a weakly prime, because it can be changed into another prime (55680349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27840189 + 27840190.

It is an arithmetic number, because the mean of its divisors is an integer number (27840190).

Almost surely, 2^55680379 is an apocalyptic number.

55680379 is a deficient number, since it is larger than the sum of its proper divisors (1).

55680379 is an equidigital number, since it uses as much as digits as its factorization.

55680379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 55680379 is about 7461.9286380935. The cubic root of 55680379 is about 381.8569747725.

The spelling of 55680379 in words is "fifty-five million, six hundred eighty thousand, three hundred seventy-nine".