55081154 has 4 divisors (see below), whose sum is σ = 82621734. Its totient is φ = 27540576.

The previous prime is 55081127. The next prime is 55081157. The reversal of 55081154 is 45118055.

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., 49210225 + 5870929 = 7015^2 + 2423^2 .

It is not an unprimeable number, because it can be changed into a prime (55081157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13770287 + ... + 13770290.

Almost surely, 2^55081154 is an apocalyptic number.

55081154 is a deficient number, since it is larger than the sum of its proper divisors (27540580).

55081154 is a wasteful number, since it uses less digits than its factorization.

55081154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27540579.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 55081154 is about 7421.6678718466. The cubic root of 55081154 is about 380.4821994904.

The spelling of 55081154 in words is "fifty-five million, eighty-one thousand, one hundred fifty-four".