55580306 has 4 divisors (see below), whose sum is σ = 83370462. Its totient is φ = 27790152.

The previous prime is 55580279. The next prime is 55580323. The reversal of 55580306 is 60308555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42367081 + 13213225 = 6509^2 + 3635^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13895075 + ... + 13895078.

Almost surely, 2^55580306 is an apocalyptic number.

55580306 is a deficient number, since it is larger than the sum of its proper divisors (27790156).

55580306 is a wasteful number, since it uses less digits than its factorization.

55580306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27790155.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 55580306 is about 7455.2200504076. The cubic root of 55580306 is about 381.6280701442.

The spelling of 55580306 in words is "fifty-five million, five hundred eighty thousand, three hundred six".