55511027 has 16 divisors (see below), whose sum is σ = 68651520. Its totient is φ = 44128800.

The previous prime is 55511023. The next prime is 55511039. The reversal of 55511027 is 72011555.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55511027 - 2² = 55511023 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55510987 and 55511005.

It is not an unprimeable number, because it can be changed into a prime (55511023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7499 + ... + 12932.

It is an arithmetic number, because the mean of its divisors is an integer number (4290720).

Almost surely, 2^55511027 is an apocalyptic number.

55511027 is a deficient number, since it is larger than the sum of its proper divisors (13140493).

55511027 is a wasteful number, since it uses less digits than its factorization.

55511027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20474.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 55511027 is about 7450.5722599006. The cubic root of 55511027 is about 381.4694419921.

The spelling of 55511027 in words is "fifty-five million, five hundred eleven thousand, twenty-seven".