55289479 has 8 divisors (see below), whose sum is σ = 63348768. Its totient is φ = 47270400.

The previous prime is 55289471. The next prime is 55289489. The reversal of 55289479 is 97498255.

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 55289479 - 2³ = 55289471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55289471) 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, 7042 + ... + 12655.

It is an arithmetic number, because the mean of its divisors is an integer number (7918596).

Almost surely, 2^55289479 is an apocalyptic number.

55289479 is a deficient number, since it is larger than the sum of its proper divisors (8059289).

55289479 is a wasteful number, since it uses less digits than its factorization.

55289479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20105.

The product of its digits is 907200, while the sum is 49.

The square root of 55289479 is about 7435.6895443530. The cubic root of 55289479 is about 380.9612758387.

The spelling of 55289479 in words is "fifty-five million, two hundred eighty-nine thousand, four hundred seventy-nine".