55047256 has 96 divisors (see below), whose sum is σ = 124009200. Its totient is φ = 22809600.

The previous prime is 55047221. The next prime is 55047263. The reversal of 55047256 is 65274055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 754036 + ... + 754108.

Almost surely, 2^55047256 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 55047256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62004600).

55047256 is an abundant number, since it is smaller than the sum of its proper divisors (68961944).

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

55047256 is a wasteful number, since it uses less digits than its factorization.

55047256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 55047256 is about 7419.3838019070. The cubic root of 55047256 is about 380.4041314558.

The spelling of 55047256 in words is "fifty-five million, forty-seven thousand, two hundred fifty-six".