55667567 has 8 divisors (see below), whose sum is σ = 58236000. Its totient is φ = 53111520.

The previous prime is 55667561. The next prime is 55667581. The reversal of 55667567 is 76576655.

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 55667567 - 2¹⁰ = 55666543 is a prime.

It is a super-4 number, since 4×55667567⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55667561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6809 + ... + 12557.

It is an arithmetic number, because the mean of its divisors is an integer number (7279500).

Almost surely, 2^55667567 is an apocalyptic number.

55667567 is a deficient number, since it is larger than the sum of its proper divisors (2568433).

55667567 is a wasteful number, since it uses less digits than its factorization.

55667567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193.

The product of its digits is 1323000, while the sum is 47.

The square root of 55667567 is about 7461.0700975128. The cubic root of 55667567 is about 381.8276842220.

The spelling of 55667567 in words is "fifty-five million, six hundred sixty-seven thousand, five hundred sixty-seven".