55086131 has 4 divisors (see below), whose sum is σ = 55862064. Its totient is φ = 54310200.

The previous prime is 55086113. The next prime is 55086169. The reversal of 55086131 is 13168055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55086131 - 2⁶ = 55086067 is a prime.

It is a super-2 number, since 2×55086131² = 6068963657098322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55086094 and 55086103.

It is not an unprimeable number, because it can be changed into a prime (55086181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387860 + ... + 388001.

It is an arithmetic number, because the mean of its divisors is an integer number (13965516).

Almost surely, 2^55086131 is an apocalyptic number.

55086131 is a deficient number, since it is larger than the sum of its proper divisors (775933).

55086131 is an equidigital number, since it uses as much as digits as its factorization.

55086131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775932.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 55086131 is about 7422.0031662618. The cubic root of 55086131 is about 380.4936589627.

The spelling of 55086131 in words is "fifty-five million, eighty-six thousand, one hundred thirty-one".