55543445 has 8 divisors (see below), whose sum is σ = 66693120. Its totient is φ = 44407440.

The previous prime is 55543343. The next prime is 55543451. The reversal of 55543445 is 54434555.

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

It is not a de Polignac number, because 55543445 - 2¹⁸ = 55281301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11276 + ... + 15434.

It is an arithmetic number, because the mean of its divisors is an integer number (8336640).

Almost surely, 2^55543445 is an apocalyptic number.

It is an amenable number.

55543445 is a deficient number, since it is larger than the sum of its proper divisors (11149675).

55543445 is a wasteful number, since it uses less digits than its factorization.

55543445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6835.

The product of its digits is 120000, while the sum is 35.

The square root of 55543445 is about 7452.7474799566. The cubic root of 55543445 is about 381.5436859187.

The spelling of 55543445 in words is "fifty-five million, five hundred forty-three thousand, four hundred forty-five".