55226724 has 36 divisors (see below), whose sum is σ = 149902704. Its totient is φ = 15778896.

The previous prime is 55226723. The next prime is 55226729. The reversal of 55226724 is 42762255.

It is not an unprimeable number, because it can be changed into a prime (55226723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46374 + ... + 47549.

It is an arithmetic number, because the mean of its divisors is an integer number (4163964).

Almost surely, 2^55226724 is an apocalyptic number.

It is an amenable number.

55226724 is an abundant number, since it is smaller than the sum of its proper divisors (94675980).

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

55226724 is a wasteful number, since it uses less digits than its factorization.

55226724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93944 (or 93935 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 55226724 is about 7431.4684955263. The cubic root of 55226724 is about 380.8170876127.

Adding to 55226724 its reverse (42762255), we get a palindrome (97988979).

It can be divided in two parts, 5522 and 6724, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 55226724 in words is "fifty-five million, two hundred twenty-six thousand, seven hundred twenty-four".