22514251 has 4 divisors (see below), whose sum is σ = 22663504. Its totient is φ = 22365000.

The previous prime is 22514231. The next prime is 22514257. The reversal of 22514251 is 15241522.

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

It is a cyclic number.

It is not a de Polignac number, because 22514251 - 2⁷ = 22514123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22514257) 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, 74400 + ... + 74701.

It is an arithmetic number, because the mean of its divisors is an integer number (5665876).

Almost surely, 2^22514251 is an apocalyptic number.

22514251 is a deficient number, since it is larger than the sum of its proper divisors (149253).

22514251 is a wasteful number, since it uses less digits than its factorization.

22514251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149252.

The product of its digits is 800, while the sum is 22.

The square root of 22514251 is about 4744.9184397627. The cubic root of 22514251 is about 282.3703992158.

Adding to 22514251 its reverse (15241522), we get a palindrome (37755773).

The spelling of 22514251 in words is "twenty-two million, five hundred fourteen thousand, two hundred fifty-one".