55122658 has 4 divisors (see below), whose sum is σ = 82683990. Its totient is φ = 27561328.

The previous prime is 55122647. The next prime is 55122659. The reversal of 55122658 is 85622155.

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., 45118089 + 10004569 = 6717^2 + 3163^2 .

It is not an unprimeable number, because it can be changed into a prime (55122659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13780663 + ... + 13780666.

Almost surely, 2^55122658 is an apocalyptic number.

55122658 is a deficient number, since it is larger than the sum of its proper divisors (27561332).

55122658 is a wasteful number, since it uses less digits than its factorization.

55122658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27561331.

The product of its digits is 24000, while the sum is 34.

The square root of 55122658 is about 7424.4634822996. The cubic root of 55122658 is about 380.5777407502.

The spelling of 55122658 in words is "fifty-five million, one hundred twenty-two thousand, six hundred fifty-eight".