22755550 has 48 divisors (see below), whose sum is σ = 44675712. Its totient is φ = 8611200.

The previous prime is 22755541. The next prime is 22755553. The reversal of 22755550 is 5555722.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22755553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82012 + ... + 82288.

It is an arithmetic number, because the mean of its divisors is an integer number (930744).

Almost surely, 2^22755550 is an apocalyptic number.

22755550 is a deficient number, since it is larger than the sum of its proper divisors (21920162).

22755550 is a wasteful number, since it uses less digits than its factorization.

22755550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 22755550 is about 4770.2777696901. The cubic root of 22755550 is about 283.3755953875.

The spelling of 22755550 in words is "twenty-two million, seven hundred fifty-five thousand, five hundred fifty".