28553822 has 12 divisors (see below), whose sum is σ = 47078808. Its totient is φ = 12978900.

The previous prime is 28553809. The next prime is 28553831. The reversal of 28553822 is 22835582.

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, 58754 + ... + 59237.

It is an arithmetic number, because the mean of its divisors is an integer number (3923234).

Almost surely, 2^28553822 is an apocalyptic number.

28553822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28553822 is a deficient number, since it is larger than the sum of its proper divisors (18524986).

28553822 is a wasteful number, since it uses less digits than its factorization.

28553822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118015 (or 118004 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 28553822 is about 5343.5776404952. The cubic root of 28553822 is about 305.6478997928.

The spelling of 28553822 in words is "twenty-eight million, five hundred fifty-three thousand, eight hundred twenty-two".