55931277 has 8 divisors (see below), whose sum is σ = 74619360. Its totient is φ = 37265360.

The previous prime is 55931263. The next prime is 55931311. The reversal of 55931277 is 77213955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55931277 - 2¹⁴ = 55914893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55921277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1702 + ... + 10712.

It is an arithmetic number, because the mean of its divisors is an integer number (9327420).

Almost surely, 2^55931277 is an apocalyptic number.

It is an amenable number.

55931277 is a deficient number, since it is larger than the sum of its proper divisors (18688083).

55931277 is a wasteful number, since it uses less digits than its factorization.

55931277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11083.

The product of its digits is 66150, while the sum is 39.

The square root of 55931277 is about 7478.7216153565. The cubic root of 55931277 is about 382.4296696699.

The spelling of 55931277 in words is "fifty-five million, nine hundred thirty-one thousand, two hundred seventy-seven".