654550 has 48 divisors (see below), whose sum is σ = 1406160. Its totient is φ = 224640.

The previous prime is 654541. The next prime is 654553. The reversal of 654550 is 55456.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12324 + ... + 12376.

It is an arithmetic number, because the mean of its divisors is an integer number (29295).

2⁶⁵⁴⁵⁵⁰ is an apocalyptic number.

654550 is an abundant number, since it is smaller than the sum of its proper divisors (751610).

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

654550 is a wasteful number, since it uses less digits than its factorization.

654550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 654550 is about 809.0426441171. The cubic root of 654550 is about 86.8255631985.

The spelling of 654550 in words is "six hundred fifty-four thousand, five hundred fifty".