54451345 has 32 divisors (see below), whose sum is σ = 73995264. Its totient is φ = 38188800.

The previous prime is 54451343. The next prime is 54451367. The reversal of 54451345 is 54315445.

It is a happy number.

It is not a de Polignac number, because 54451345 - 2¹ = 54451343 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (54451343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122694 + ... + 123136.

It is an arithmetic number, because the mean of its divisors is an integer number (2312352).

Almost surely, 2^54451345 is an apocalyptic number.

It is an amenable number.

54451345 is a deficient number, since it is larger than the sum of its proper divisors (19543919).

54451345 is a wasteful number, since it uses less digits than its factorization.

54451345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its digits is 24000, while the sum is 31.

The square root of 54451345 is about 7379.1154618965. The cubic root of 54451345 is about 379.0264669176.

The spelling of 54451345 in words is "fifty-four million, four hundred fifty-one thousand, three hundred forty-five".