55526224 has 20 divisors (see below), whose sum is σ = 115858036. Its totient is φ = 25627392.

The previous prime is 55526221. The next prime is 55526231. The reversal of 55526224 is 42262555.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5569600 + 49956624 = 2360^2 + 7068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55526221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133269 + ... + 133684.

Almost surely, 2^55526224 is an apocalyptic number.

It is an amenable number.

55526224 is an abundant number, since it is smaller than the sum of its proper divisors (60331812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55526224 is a wasteful number, since it uses less digits than its factorization.

55526224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266974 (or 266968 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 55526224 is about 7451.5920446573. The cubic root of 55526224 is about 381.5042498641.

Adding to 55526224 its reverse (42262555), we get a palindrome (97788779).

The spelling of 55526224 in words is "fifty-five million, five hundred twenty-six thousand, two hundred twenty-four".