54440155 has 16 divisors (see below), whose sum is σ = 81448704. Its totient is φ = 33936480.

The previous prime is 54440153. The next prime is 54440167. The reversal of 54440155 is 55104445.

It is not a de Polignac number, because 54440155 - 2¹ = 54440153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54440153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70317 + ... + 71086.

It is an arithmetic number, because the mean of its divisors is an integer number (5090544).

Almost surely, 2^54440155 is an apocalyptic number.

54440155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54440155 is a deficient number, since it is larger than the sum of its proper divisors (27008549).

54440155 is a wasteful number, since it uses less digits than its factorization.

54440155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141426.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 54440155 is about 7378.3572019793. The cubic root of 54440155 is about 379.0005012490. Note that the first 3 decimals are identical.

The spelling of 54440155 in words is "fifty-four million, four hundred forty thousand, one hundred fifty-five".