22551351 has 4 divisors (see below), whose sum is σ = 30068472. Its totient is φ = 15034232.

The previous prime is 22551343. The next prime is 22551359. The reversal of 22551351 is 15315522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22551343) and next prime (22551359).

It is a cyclic number.

It is not a de Polignac number, because 22551351 - 2³ = 22551343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3758556 + ... + 3758561.

It is an arithmetic number, because the mean of its divisors is an integer number (7517118).

Almost surely, 2^22551351 is an apocalyptic number.

22551351 is a deficient number, since it is larger than the sum of its proper divisors (7517121).

22551351 is an equidigital number, since it uses as much as digits as its factorization.

22551351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7517120.

The product of its digits is 1500, while the sum is 24.

The square root of 22551351 is about 4748.8262760392. The cubic root of 22551351 is about 282.5254150001.

Adding to 22551351 its reverse (15315522), we get a palindrome (37866873).

The spelling of 22551351 in words is "twenty-two million, five hundred fifty-one thousand, three hundred fifty-one".