55509626 has 8 divisors (see below), whose sum is σ = 86884704. Its totient is φ = 26548060.

The previous prime is 55509599. The next prime is 55509637. The reversal of 55509626 is 62690555.

55509626 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 a self number, because there is not a number n which added to its sum of digits gives 55509626.

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 3 ways as a sum of consecutive naturals, for example, 603320 + ... + 603411.

It is an arithmetic number, because the mean of its divisors is an integer number (10860588).

Almost surely, 2^55509626 is an apocalyptic number.

55509626 is a deficient number, since it is larger than the sum of its proper divisors (31375078).

55509626 is a wasteful number, since it uses less digits than its factorization.

55509626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206756.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 55509626 is about 7450.4782396837. The cubic root of 55509626 is about 381.4662327607.

The spelling of 55509626 in words is "fifty-five million, five hundred nine thousand, six hundred twenty-six".