55665276 has 48 divisors (see below), whose sum is σ = 138093984. Its totient is φ = 17391616.

The previous prime is 55665223. The next prime is 55665277. The reversal of 55665276 is 67256655.

It is a happy number.

55665276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55665277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71626 + ... + 72398.

It is an arithmetic number, because the mean of its divisors is an integer number (2876958).

Almost surely, 2^55665276 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 55665276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69046992).

55665276 is an abundant number, since it is smaller than the sum of its proper divisors (82428708).

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

55665276 is a wasteful number, since it uses less digits than its factorization.

55665276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 1148 counting only the distinct ones).

The product of its digits is 378000, while the sum is 42.

The square root of 55665276 is about 7460.9165656774. The cubic root of 55665276 is about 381.8224461078.

The spelling of 55665276 in words is "fifty-five million, six hundred sixty-five thousand, two hundred seventy-six".