54390450 has 48 divisors (see below), whose sum is σ = 135348480. Its totient is φ = 14454720.

The previous prime is 54390449. The next prime is 54390499. The reversal of 54390450 is 5409345.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71472 + ... + 72228.

It is an arithmetic number, because the mean of its divisors is an integer number (2819760).

Almost surely, 2^54390450 is an apocalyptic number.

54390450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54390450 is an abundant number, since it is smaller than the sum of its proper divisors (80958030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54390450 is a wasteful number, since it uses less digits than its factorization.

54390450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 54390450 is about 7374.9881355837. The cubic root of 54390450 is about 378.8851209992.

Adding to 54390450 its reverse (5409345), we get a palindrome (59799795).

The spelling of 54390450 in words is "fifty-four million, three hundred ninety thousand, four hundred fifty".