55432445 has 8 divisors (see below), whose sum is σ = 66854400. Its totient is φ = 44122320.

The previous prime is 55432441. The next prime is 55432453. The reversal of 55432445 is 54423455.

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

It is not a de Polignac number, because 55432445 - 2² = 55432441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55432441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26861 + ... + 28850.

It is an arithmetic number, because the mean of its divisors is an integer number (8356800).

Almost surely, 2^55432445 is an apocalyptic number.

It is an amenable number.

55432445 is a deficient number, since it is larger than the sum of its proper divisors (11421955).

55432445 is a wasteful number, since it uses less digits than its factorization.

55432445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55915.

The product of its digits is 48000, while the sum is 32.

The square root of 55432445 is about 7445.2968376016. The cubic root of 55432445 is about 381.2893529207.

The spelling of 55432445 in words is "fifty-five million, four hundred thirty-two thousand, four hundred forty-five".