54400445 has 8 divisors (see below), whose sum is σ = 71215200. Its totient is φ = 39563920.

The previous prime is 54400421. The next prime is 54400447.

54400445 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54400445 - 2⁸ = 54400189 is a prime.

It is a super-3 number, since 3×54400445³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54400447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494495 + ... + 494604.

It is an arithmetic number, because the mean of its divisors is an integer number (8901900).

Almost surely, 2^54400445 is an apocalyptic number.

54400445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54400445 is a deficient number, since it is larger than the sum of its proper divisors (16814755).

54400445 is a wasteful number, since it uses less digits than its factorization.

54400445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989115.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 54400445 is about 7375.6657326644. The cubic root of 54400445 is about 378.9083280440.

It can be divided in two parts, 54400 and 445, that added together give a palindrome (54845).

The spelling of 54400445 in words is "fifty-four million, four hundred thousand, four hundred forty-five".