55669841 has 4 divisors (see below), whose sum is σ = 57027684. Its totient is φ = 54312000.

The previous prime is 55669811. The next prime is 55669847. The reversal of 55669841 is 14896655.

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 32821441 + 22848400 = 5729^2 + 4780^2 .

It is a cyclic number.

It is not a de Polignac number, because 55669841 - 2¹⁰ = 55668817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55669792 and 55669801.

It is not an unprimeable number, because it can be changed into a prime (55669847) 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, 678860 + ... + 678941.

It is an arithmetic number, because the mean of its divisors is an integer number (14256921).

Almost surely, 2^55669841 is an apocalyptic number.

It is an amenable number.

55669841 is a deficient number, since it is larger than the sum of its proper divisors (1357843).

55669841 is a wasteful number, since it uses less digits than its factorization.

55669841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357842.

The product of its digits is 259200, while the sum is 44.

The square root of 55669841 is about 7461.2224869655. Note that the first 3 decimals coincide. The cubic root of 55669841 is about 381.8328833256.

The spelling of 55669841 in words is "fifty-five million, six hundred sixty-nine thousand, eight hundred forty-one".