55747667 has 4 divisors (see below), whose sum is σ = 55899936. Its totient is φ = 55595400.

The previous prime is 55747639. The next prime is 55747673. The reversal of 55747667 is 76674755.

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

It is a cyclic number.

It is not a de Polignac number, because 55747667 - 2⁶ = 55747603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55747067) 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, 75584 + ... + 76317.

It is an arithmetic number, because the mean of its divisors is an integer number (13974984).

Almost surely, 2^55747667 is an apocalyptic number.

55747667 is a deficient number, since it is larger than the sum of its proper divisors (152269).

55747667 is a wasteful number, since it uses less digits than its factorization.

55747667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152268.

The product of its digits is 1234800, while the sum is 47.

The square root of 55747667 is about 7466.4360306642. The cubic root of 55747667 is about 382.0107335964.

The spelling of 55747667 in words is "fifty-five million, seven hundred forty-seven thousand, six hundred sixty-seven".