55204742 has 16 divisors (see below), whose sum is σ = 84039120. Its totient is φ = 27194112.

The previous prime is 55204727. The next prime is 55204757. The reversal of 55204742 is 24740255.

It is a happy number.

55204742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55204727) and next prime (55204757).

It is a congruent number.

It is an unprimeable number.

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, 92798 + ... + 93390.

It is an arithmetic number, because the mean of its divisors is an integer number (5252445).

Almost surely, 2^55204742 is an apocalyptic number.

55204742 is a deficient number, since it is larger than the sum of its proper divisors (28834378).

55204742 is a wasteful number, since it uses less digits than its factorization.

55204742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 55204742 is about 7429.9893674217. The cubic root of 55204742 is about 380.7665551197.

Adding to 55204742 its reverse (24740255), we get a palindrome (79944997).

The spelling of 55204742 in words is "fifty-five million, two hundred four thousand, seven hundred forty-two".