54665000 has 120 divisors (see below), whose sum is σ = 142852710. Its totient is φ = 19488000.

The previous prime is 54664949. The next prime is 54665027. The reversal of 54665000 is 56645.

It can be written as a sum of positive squares in 15 ways, for example, as 30713764 + 23951236 = 5542^2 + 4894^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1884986 + ... + 1885014.

Almost surely, 2^54665000 is an apocalyptic number.

54665000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54665000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71426355).

54665000 is an abundant number, since it is smaller than the sum of its proper divisors (88187710).

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

54665000 is a wasteful number, since it uses less digits than its factorization.

54665000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 54665000 is about 7393.5782947095. The cubic root of 54665000 is about 379.5215585328.

Multiplying 54665000 by its sum of digits (26), we get a square (1421290000 = 37700²).

54665000 divided by its sum of digits (26) gives a square (2102500 = 1450²).

The spelling of 54665000 in words is "fifty-four million, six hundred sixty-five thousand".