55153609 has 8 divisors (see below), whose sum is σ = 65773440. Its totient is φ = 45218976.

The previous prime is 55153603. The next prime is 55153639. The reversal of 55153609 is 90635155.

55153609 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 cyclic number.

It is not a de Polignac number, because 55153609 - 2³ = 55153601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55153601) by changing a digit.

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, 171124 + ... + 171445.

It is an arithmetic number, because the mean of its divisors is an integer number (8221680).

Almost surely, 2^55153609 is an apocalyptic number.

It is an amenable number.

55153609 is a deficient number, since it is larger than the sum of its proper divisors (10619831).

55153609 is a wasteful number, since it uses less digits than its factorization.

55153609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342599.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 55153609 is about 7426.5475828274. The cubic root of 55153609 is about 380.6489580324.

It can be divided in two parts, 55 and 153609, that added together give a square (153664 = 392²).

The spelling of 55153609 in words is "fifty-five million, one hundred fifty-three thousand, six hundred nine".