55670272 has 80 divisors (see below), whose sum is σ = 130125600. Its totient is φ = 23783424.

The previous prime is 55670269. The next prime is 55670287. The reversal of 55670272 is 27207655.

It is a happy number.

It is a congruent number.

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, 175458 + ... + 175774.

It is an arithmetic number, because the mean of its divisors is an integer number (1626570).

Almost surely, 2^55670272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55670272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65062800).

55670272 is an abundant number, since it is smaller than the sum of its proper divisors (74455328).

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

55670272 is an frugal number, since it uses more digits than its factorization.

55670272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 55670272 is about 7461.2513695760. The cubic root of 55670272 is about 381.8338687158.

The spelling of 55670272 in words is "fifty-five million, six hundred seventy thousand, two hundred seventy-two".