55116427 has 8 divisors (see below), whose sum is σ = 55641600. Its totient is φ = 54594024.

The previous prime is 55116401. The next prime is 55116437. The reversal of 55116427 is 72461155.

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 55116427 - 2¹⁵ = 55083659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55116437) 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, 65274 + ... + 66112.

It is an arithmetic number, because the mean of its divisors is an integer number (6955200).

Almost surely, 2^55116427 is an apocalyptic number.

55116427 is a deficient number, since it is larger than the sum of its proper divisors (525173).

55116427 is a wasteful number, since it uses less digits than its factorization.

55116427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385.

The product of its digits is 8400, while the sum is 31.

The square root of 55116427 is about 7424.0438441593. The cubic root of 55116427 is about 380.5634001907.

The spelling of 55116427 in words is "fifty-five million, one hundred sixteen thousand, four hundred twenty-seven".