55306342 has 64 divisors (see below), whose sum is σ = 107864064. Its totient is φ = 20684160.

The previous prime is 55306331. The next prime is 55306369. The reversal of 55306342 is 24360355.

It is a Cunningham number, because it is equal to 381³+1.

It is a self number, because there is not a number n which added to its sum of digits gives 55306342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289467 + ... + 289657.

It is an arithmetic number, because the mean of its divisors is an integer number (1685376).

Almost surely, 2^55306342 is an apocalyptic number.

55306342 is a deficient number, since it is larger than the sum of its proper divisors (52557722).

55306342 is a wasteful number, since it uses less digits than its factorization.

55306342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 55306342 is about 7436.8233809873. The cubic root of 55306342 is about 381.0000022963. Note that the first 5 decimals are identical.

Adding to 55306342 its reverse (24360355), we get a palindrome (79666697).

The spelling of 55306342 in words is "fifty-five million, three hundred six thousand, three hundred forty-two".