55081942 has 16 divisors (see below), whose sum is σ = 85839264. Its totient is φ = 26488000.

The previous prime is 55081927. The next prime is 55081967. The reversal of 55081942 is 24918055.

It is a junction number, because it is equal to n+sod(n) for n = 55081898 and 55081907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092 + ... + 10552.

It is an arithmetic number, because the mean of its divisors is an integer number (5364954).

Almost surely, 2^55081942 is an apocalyptic number.

55081942 is a deficient number, since it is larger than the sum of its proper divisors (30757322).

55081942 is a wasteful number, since it uses less digits than its factorization.

55081942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9575.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 55081942 is about 7421.7209594541. The cubic root of 55081942 is about 380.4840138953.

Adding to 55081942 its reverse (24918055), we get a palindrome (79999997).

The spelling of 55081942 in words is "fifty-five million, eighty-one thousand, nine hundred forty-two".