55671445 has 8 divisors (see below), whose sum is σ = 69109560. Its totient is φ = 43001280.

The previous prime is 55671419. The next prime is 55671449. The reversal of 55671445 is 54417655.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1825201 + 53846244 = 1351^2 + 7338^2 .

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

It is not a de Polignac number, because 55671445 - 2⁹ = 55670933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55671449) 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, 191826 + ... + 192115.

It is an arithmetic number, because the mean of its divisors is an integer number (8638695).

Almost surely, 2^55671445 is an apocalyptic number.

It is an amenable number.

55671445 is a deficient number, since it is larger than the sum of its proper divisors (13438115).

55671445 is a wasteful number, since it uses less digits than its factorization.

55671445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383975.

The product of its digits is 84000, while the sum is 37.

The square root of 55671445 is about 7461.3299752792. The cubic root of 55671445 is about 381.8365505060.

The spelling of 55671445 in words is "fifty-five million, six hundred seventy-one thousand, four hundred forty-five".