55204445 has 8 divisors (see below), whose sum is σ = 66397536. Its totient is φ = 44062096.

The previous prime is 55204441. The next prime is 55204463. The reversal of 55204445 is 54440255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55204445 - 2² = 55204441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55204441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10247 + ... + 14676.

It is an arithmetic number, because the mean of its divisors is an integer number (8299692).

Almost surely, 2^55204445 is an apocalyptic number.

It is an amenable number.

55204445 is a deficient number, since it is larger than the sum of its proper divisors (11193091).

55204445 is a wasteful number, since it uses less digits than its factorization.

55204445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25371.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 55204445 is about 7429.9693808252. The cubic root of 55204445 is about 380.7658722806.

The spelling of 55204445 in words is "fifty-five million, two hundred four thousand, four hundred forty-five".