55698667 has 4 divisors (see below), whose sum is σ = 55728376. Its totient is φ = 55668960.

The previous prime is 55698659. The next prime is 55698683. The reversal of 55698667 is 76689655.

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 55698667 - 2³ = 55698659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55698637) 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, 11838 + ... + 15859.

It is an arithmetic number, because the mean of its divisors is an integer number (13932094).

Almost surely, 2^55698667 is an apocalyptic number.

55698667 is a deficient number, since it is larger than the sum of its proper divisors (29709).

55698667 is a wasteful number, since it uses less digits than its factorization.

55698667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29708.

The product of its digits is 2721600, while the sum is 52.

The square root of 55698667 is about 7463.1539579457. The cubic root of 55698667 is about 381.8987766667.

It can be divided in two parts, 55698 and 667, that added together give a palindrome (56365).

The spelling of 55698667 in words is "fifty-five million, six hundred ninety-eight thousand, six hundred sixty-seven".