55580378 has 32 divisors (see below), whose sum is σ = 101326464. Its totient is φ = 22321152.

The previous prime is 55580359. The next prime is 55580383. The reversal of 55580378 is 87308555.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82250 + ... + 82922.

It is an arithmetic number, because the mean of its divisors is an integer number (3166452).

Almost surely, 2^55580378 is an apocalyptic number.

55580378 is a deficient number, since it is larger than the sum of its proper divisors (45746086).

55580378 is a wasteful number, since it uses less digits than its factorization.

55580378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 55580378 is about 7455.2248792374. The cubic root of 55580378 is about 381.6282349341.

The spelling of 55580378 in words is "fifty-five million, five hundred eighty thousand, three hundred seventy-eight".