55108738 has 4 divisors (see below), whose sum is σ = 82663110. Its totient is φ = 27554368.

The previous prime is 55108733. The next prime is 55108751. The reversal of 55108738 is 83780155.

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., 54715609 + 393129 = 7397^2 + 627^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55108697 and 55108706.

It is not an unprimeable number, because it can be changed into a prime (55108733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13777183 + ... + 13777186.

Almost surely, 2^55108738 is an apocalyptic number.

55108738 is a deficient number, since it is larger than the sum of its proper divisors (27554372).

55108738 is a wasteful number, since it uses less digits than its factorization.

55108738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27554371.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 55108738 is about 7423.5259816343. The cubic root of 55108738 is about 380.5457025748.

The spelling of 55108738 in words is "fifty-five million, one hundred eight thousand, seven hundred thirty-eight".