55000131 has 8 divisors (see below), whose sum is σ = 74157840. Its totient is φ = 36254592.

The previous prime is 55000129. The next prime is 55000163. The reversal of 55000131 is 13100055.

55000131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55000131 - 2¹ = 55000129 is a prime.

It is a super-2 number, since 2×55000131² = 6050028820034322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55000131.

It is not an unprimeable number, because it can be changed into a prime (55000111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102730 + ... + 103263.

It is an arithmetic number, because the mean of its divisors is an integer number (9269730).

Almost surely, 2^55000131 is an apocalyptic number.

55000131 is a deficient number, since it is larger than the sum of its proper divisors (19157709).

55000131 is a wasteful number, since it uses less digits than its factorization.

55000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206085.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 55000131 is about 7416.2073191086. The cubic root of 55000131 is about 380.2955480073.

Adding to 55000131 its reverse (13100055), we get a palindrome (68100186).

The spelling of 55000131 in words is "fifty-five million, one hundred thirty-one", and thus it is an aban number.