55247276 has 48 divisors (see below), whose sum is σ = 113379840. Its totient is φ = 23068800.

The previous prime is 55247261. The next prime is 55247279. The reversal of 55247276 is 67274255.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55247279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308555 + ... + 308733.

It is an arithmetic number, because the mean of its divisors is an integer number (2362080).

Almost surely, 2^55247276 is an apocalyptic number.

It is an amenable number.

55247276 is an abundant number, since it is smaller than the sum of its proper divisors (58132564).

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

55247276 is a wasteful number, since it uses less digits than its factorization.

55247276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 412 counting only the distinct ones).

The product of its digits is 117600, while the sum is 38.

The square root of 55247276 is about 7432.8511353316. The cubic root of 55247276 is about 380.8643206765.

The spelling of 55247276 in words is "fifty-five million, two hundred forty-seven thousand, two hundred seventy-six".