654055 has 4 divisors (see below), whose sum is σ = 784872. Its totient is φ = 523240.

The previous prime is 654053. The next prime is 654067. The reversal of 654055 is 550456.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 654055 - 2¹ = 654053 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6² + 5⁴ + 0 + 4⁹ + 5⁴ + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65401 + ... + 65410.

It is an arithmetic number, because the mean of its divisors is an integer number (196218).

2⁶⁵⁴⁰⁵⁵ is an apocalyptic number.

654055 is a deficient number, since it is larger than the sum of its proper divisors (130817).

654055 is a wasteful number, since it uses less digits than its factorization.

654055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130816.

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

The square root of 654055 is about 808.7366691328. The cubic root of 654055 is about 86.8036705534.

The spelling of 654055 in words is "six hundred fifty-four thousand, fifty-five".