55069956 has 60 divisors (see below), whose sum is σ = 148953420. Its totient is φ = 17720640.

The previous prime is 55069939. The next prime is 55069957. The reversal of 55069956 is 65996055.

55069956 is a `hidden beast` number, since 5 + 506 + 99 + 56 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26873856 + 28196100 = 5184^2 + 5310^2 .

It is not an unprimeable number, because it can be changed into a prime (55069957) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6466 + ... + 12326.

It is an arithmetic number, because the mean of its divisors is an integer number (2482557).

Almost surely, 2^55069956 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 55069956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74476710).

55069956 is an abundant number, since it is smaller than the sum of its proper divisors (93883464).

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

55069956 is a wasteful number, since it uses less digits than its factorization.

55069956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906 (or 5895 counting only the distinct ones).

The product of its (nonzero) digits is 364500, while the sum is 45.

The square root of 55069956 is about 7420.9134208667. The cubic root of 55069956 is about 380.4564137293.

The spelling of 55069956 in words is "fifty-five million, sixty-nine thousand, nine hundred fifty-six".