22069551 has 48 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 11712960.

The previous prime is 22069543. The next prime is 22069561. The reversal of 22069551 is 15596022.

It is a happy number.

It is not a de Polignac number, because 22069551 - 2³ = 22069543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22069561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132070 + ... + 132236.

It is an arithmetic number, because the mean of its divisors is an integer number (766080).

Almost surely, 2^22069551 is an apocalyptic number.

22069551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22069551 is a deficient number, since it is larger than the sum of its proper divisors (14702289).

22069551 is a wasteful number, since it uses less digits than its factorization.

22069551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 22069551 is about 4697.8240707800. The cubic root of 22069551 is about 280.4989021980.

The spelling of 22069551 in words is "twenty-two million, sixty-nine thousand, five hundred fifty-one".