55667849 has 4 divisors (see below), whose sum is σ = 57587460. Its totient is φ = 53748240.

The previous prime is 55667837. The next prime is 55667897. The reversal of 55667849 is 94876655.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12673600 + 42994249 = 3560^2 + 6557^2 .

It is a cyclic number.

It is not a de Polignac number, because 55667849 - 2⁸ = 55667593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55667797 and 55667806.

It is not an unprimeable number, because it can be changed into a prime (55667449) 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, 959762 + ... + 959819.

It is an arithmetic number, because the mean of its divisors is an integer number (14396865).

Almost surely, 2^55667849 is an apocalyptic number.

It is an amenable number.

55667849 is a deficient number, since it is larger than the sum of its proper divisors (1919611).

55667849 is a wasteful number, since it uses less digits than its factorization.

55667849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919610.

The product of its digits is 1814400, while the sum is 50.

The square root of 55667849 is about 7461.0889955823. The cubic root of 55667849 is about 381.8283289734.

The spelling of 55667849 in words is "fifty-five million, six hundred sixty-seven thousand, eight hundred forty-nine".