55113418 has 4 divisors (see below), whose sum is σ = 82670130. Its totient is φ = 27556708.

The previous prime is 55113413. The next prime is 55113449. The reversal of 55113418 is 81431155.

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., 45522009 + 9591409 = 6747^2 + 3097^2 .

It is not an unprimeable number, because it can be changed into a prime (55113413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13778353 + ... + 13778356.

Almost surely, 2^55113418 is an apocalyptic number.

55113418 is a deficient number, since it is larger than the sum of its proper divisors (27556712).

55113418 is a wasteful number, since it uses less digits than its factorization.

55113418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27556711.

The product of its digits is 2400, while the sum is 28.

The square root of 55113418 is about 7423.8411890342. The cubic root of 55113418 is about 380.5564746323.

The spelling of 55113418 in words is "fifty-five million, one hundred thirteen thousand, four hundred eighteen".