55326617 has 4 divisors (see below), whose sum is σ = 55370256. Its totient is φ = 55282980.

The previous prime is 55326571. The next prime is 55326637. The reversal of 55326617 is 71662355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55326617 - 2¹⁰ = 55325593 is a prime.

It is a super-2 number, since 2×55326617² = 6122069097329378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55326637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19859 + ... + 22472.

It is an arithmetic number, because the mean of its divisors is an integer number (13842564).

Almost surely, 2^55326617 is an apocalyptic number.

It is an amenable number.

55326617 is a deficient number, since it is larger than the sum of its proper divisors (43639).

55326617 is a wasteful number, since it uses less digits than its factorization.

55326617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43638.

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

The square root of 55326617 is about 7438.1864053007. The cubic root of 55326617 is about 381.0465541082.

The spelling of 55326617 in words is "fifty-five million, three hundred twenty-six thousand, six hundred seventeen".