22557151 has 2 divisors, whose sum is σ = 22557152. Its totient is φ = 22557150.

The previous prime is 22557149. The next prime is 22557163. The reversal of 22557151 is 15175522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22557151 - 2¹ = 22557149 is a prime.

It is a super-2 number, since 2×22557151² = 1017650122473602, which contains 22 as substring.

Together with 22557149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22557121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11278575 + 11278576.

It is an arithmetic number, because the mean of its divisors is an integer number (11278576).

Almost surely, 2^22557151 is an apocalyptic number.

22557151 is a deficient number, since it is larger than the sum of its proper divisors (1).

22557151 is an equidigital number, since it uses as much as digits as its factorization.

22557151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3500, while the sum is 28.

The square root of 22557151 is about 4749.4369139931. The cubic root of 22557151 is about 282.5496339031.

The spelling of 22557151 in words is "twenty-two million, five hundred fifty-seven thousand, one hundred fifty-one".