624554 has 12 divisors (see below), whose sum is σ = 1089954. Its totient is φ = 267624.

The previous prime is 624541. The next prime is 624577. The reversal of 624554 is 455426.

624554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 442225 + 182329 = 665^2 + 427^2 .

It is a d-powerful number, because it can be written as 6⁷ + 2⁷ + 5³ + 4⁶ + 5⁷ + 4⁹ .

It is an unprimeable number.

624554 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3089 + ... + 3284.

2⁶²⁴⁵⁵⁴ is an apocalyptic number.

624554 is a deficient number, since it is larger than the sum of its proper divisors (465400).

624554 is a wasteful number, since it uses less digits than its factorization.

624554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389 (or 6382 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 624554 is about 790.2872895346. The cubic root of 624554 is about 85.4784551804.

It can be divided in two parts, 624 and 554, that multiplied together give a triangular number (345696 = T₈₃₁).

The spelling of 624554 in words is "six hundred twenty-four thousand, five hundred fifty-four".