622550 has 12 divisors (see below), whose sum is σ = 1158036. Its totient is φ = 249000.

The previous prime is 622549. The next prime is 622561. The reversal of 622550 is 55226.

It is a happy number.

622550 is nontrivially palindromic in base 4.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6176 + ... + 6275.

It is an arithmetic number, because the mean of its divisors is an integer number (96503).

2⁶²²⁵⁵⁰ is an apocalyptic number.

622550 is a deficient number, since it is larger than the sum of its proper divisors (535486).

622550 is a wasteful number, since it uses less digits than its factorization.

622550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12463 (or 12458 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 622550 is about 789.0183774793. The cubic root of 622550 is about 85.3869326078.

Adding to 622550 its reverse (55226), we get a palindrome (677776).

The spelling of 622550 in words is "six hundred twenty-two thousand, five hundred fifty".