55280379 has 48 divisors (see below), whose sum is σ = 99086976. Its totient is φ = 27014400.

The previous prime is 55280377. The next prime is 55280383. The reversal of 55280379 is 97308255.

It is not a de Polignac number, because 55280379 - 2¹ = 55280377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55280377) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26484 + ... + 28494.

It is an arithmetic number, because the mean of its divisors is an integer number (2064312).

Almost surely, 2^55280379 is an apocalyptic number.

55280379 is a deficient number, since it is larger than the sum of its proper divisors (43806597).

55280379 is a wasteful number, since it uses less digits than its factorization.

55280379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 55280379 is about 7435.0776055129. The cubic root of 55280379 is about 380.9403741055.

The spelling of 55280379 in words is "fifty-five million, two hundred eighty thousand, three hundred seventy-nine".