55277756 has 12 divisors (see below), whose sum is σ = 96888792. Its totient is φ = 27595248.

The previous prime is 55277753. The next prime is 55277759. The reversal of 55277756 is 65777255.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55277753) and next prime (55277759).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55277753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7970 + ... + 13193.

It is an arithmetic number, because the mean of its divisors is an integer number (8074066).

Almost surely, 2^55277756 is an apocalyptic number.

It is an amenable number.

55277756 is a deficient number, since it is larger than the sum of its proper divisors (41611036).

55277756 is a wasteful number, since it uses less digits than its factorization.

55277756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21820 (or 21818 counting only the distinct ones).

The product of its digits is 514500, while the sum is 44.

The square root of 55277756 is about 7434.9012098346. The cubic root of 55277756 is about 380.9343489272.

The spelling of 55277756 in words is "fifty-five million, two hundred seventy-seven thousand, seven hundred fifty-six".