55975479 has 8 divisors (see below), whose sum is σ = 85296000. Its totient is φ = 31985976.

The previous prime is 55975471. The next prime is 55975489. The reversal of 55975479 is 97457955.

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

It is not a de Polignac number, because 55975479 - 2³ = 55975471 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55975471) 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, 1332729 + ... + 1332770.

It is an arithmetic number, because the mean of its divisors is an integer number (10662000).

Almost surely, 2^55975479 is an apocalyptic number.

55975479 is a deficient number, since it is larger than the sum of its proper divisors (29320521).

55975479 is a wasteful number, since it uses less digits than its factorization.

55975479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665509.

The product of its digits is 1984500, while the sum is 51.

The square root of 55975479 is about 7481.6762159292. The cubic root of 55975479 is about 382.5303867525.

The spelling of 55975479 in words is "fifty-five million, nine hundred seventy-five thousand, four hundred seventy-nine".