55326667 has 4 divisors (see below), whose sum is σ = 60356376. Its totient is φ = 50296960.

The previous prime is 55326641. The next prime is 55326673. The reversal of 55326667 is 76662355.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55326667 is a prime.

It is a super-2 number, since 2×55326667² = 6122080162657778, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 2514838 + ... + 2514859.

It is an arithmetic number, because the mean of its divisors is an integer number (15089094).

Almost surely, 2^55326667 is an apocalyptic number.

55326667 is a deficient number, since it is larger than the sum of its proper divisors (5029709).

55326667 is a wasteful number, since it uses less digits than its factorization.

55326667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029708.

The product of its digits is 226800, while the sum is 40.

The square root of 55326667 is about 7438.1897663343. The cubic root of 55326667 is about 381.0466688951.

The spelling of 55326667 in words is "fifty-five million, three hundred twenty-six thousand, six hundred sixty-seven".