55261667 has 4 divisors (see below), whose sum is σ = 56086536. Its totient is φ = 54436800.

The previous prime is 55261651. The next prime is 55261691. The reversal of 55261667 is 76616255.

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 55261667 - 2⁴ = 55261651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55261667.

It is not an unprimeable number, because it can be changed into a prime (55261607) 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, 412334 + ... + 412467.

It is an arithmetic number, because the mean of its divisors is an integer number (14021634).

Almost surely, 2^55261667 is an apocalyptic number.

55261667 is a deficient number, since it is larger than the sum of its proper divisors (824869).

55261667 is an equidigital number, since it uses as much as digits as its factorization.

55261667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824868.

The product of its digits is 75600, while the sum is 38.

The square root of 55261667 is about 7433.8191395809. The cubic root of 55261667 is about 380.8973874205.

The spelling of 55261667 in words is "fifty-five million, two hundred sixty-one thousand, six hundred sixty-seven".