55209734 has 4 divisors (see below), whose sum is σ = 82814604. Its totient is φ = 27604866.

The previous prime is 55209719. The next prime is 55209743. The reversal of 55209734 is 43790255.

55209734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×55209734² = 6096229456701512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55209694 and 55209703.

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 as a sum of consecutive naturals, namely, 13802432 + ... + 13802435.

It is an arithmetic number, because the mean of its divisors is an integer number (20703651).

Almost surely, 2^55209734 is an apocalyptic number.

55209734 is a deficient number, since it is larger than the sum of its proper divisors (27604870).

55209734 is a wasteful number, since it uses less digits than its factorization.

55209734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27604869.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 55209734 is about 7430.3252957054. The cubic root of 55209734 is about 380.7780319681.

Adding to 55209734 its reverse (43790255), we get a palindrome (98999989).

The spelling of 55209734 in words is "fifty-five million, two hundred nine thousand, seven hundred thirty-four".