55177042 has 4 divisors (see below), whose sum is σ = 82765566. Its totient is φ = 27588520.

The previous prime is 55177039. The next prime is 55177091. The reversal of 55177042 is 24077155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53275401 + 1901641 = 7299^2 + 1379^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55176995 and 55177013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13794259 + ... + 13794262.

Almost surely, 2^55177042 is an apocalyptic number.

55177042 is a deficient number, since it is larger than the sum of its proper divisors (27588524).

55177042 is a wasteful number, since it uses less digits than its factorization.

55177042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27588523.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 55177042 is about 7428.1250662600. The cubic root of 55177042 is about 380.7028589119.

The spelling of 55177042 in words is "fifty-five million, one hundred seventy-seven thousand, forty-two".