55126320 has 40 divisors (see below), whose sum is σ = 170892336. Its totient is φ = 14700288.

The previous prime is 55126297. The next prime is 55126349. The reversal of 55126320 is 2362155.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×55126320² = 6077822313484800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114607 + ... + 115086.

Almost surely, 2^55126320 is an apocalyptic number.

It is an amenable number.

55126320 is an abundant number, since it is smaller than the sum of its proper divisors (115766016).

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

55126320 is a wasteful number, since it uses less digits than its factorization.

55126320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229709 (or 229703 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55126320 is about 7424.7100953505. The cubic root of 55126320 is about 380.5861682878.

Adding to 55126320 its reverse (2362155), we get a palindrome (57488475).

The spelling of 55126320 in words is "fifty-five million, one hundred twenty-six thousand, three hundred twenty".