54400451 has 8 divisors (see below), whose sum is σ = 64875264. Its totient is φ = 44601480.

The previous prime is 54400447. The next prime is 54400453. The reversal of 54400451 is 15400445.

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

It is not a de Polignac number, because 54400451 - 2² = 54400447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54400453) 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, 168785 + ... + 169106.

It is an arithmetic number, because the mean of its divisors is an integer number (8109408).

Almost surely, 2^54400451 is an apocalyptic number.

54400451 is a deficient number, since it is larger than the sum of its proper divisors (10474813).

54400451 is a wasteful number, since it uses less digits than its factorization.

54400451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337921.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 54400451 is about 7375.6661394073. Note that the first 3 decimals coincide. The cubic root of 54400451 is about 378.9083419744.

Adding to 54400451 its reverse (15400445), we get a palindrome (69800896).

The spelling of 54400451 in words is "fifty-four million, four hundred thousand, four hundred fifty-one".