55683569 has 2 divisors, whose sum is σ = 55683570. Its totient is φ = 55683568.

The previous prime is 55683559. The next prime is 55683577. The reversal of 55683569 is 96538655.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41152225 + 14531344 = 6415^2 + 3812^2 .

It is a cyclic number.

It is not a de Polignac number, because 55683569 - 2⁴ = 55683553 is a prime.

It is a super-2 number, since 2×55683569² = 6201319713155522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55683559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27841784 + 27841785.

It is an arithmetic number, because the mean of its divisors is an integer number (27841785).

Almost surely, 2^55683569 is an apocalyptic number.

It is an amenable number.

55683569 is a deficient number, since it is larger than the sum of its proper divisors (1).

55683569 is an equidigital number, since it uses as much as digits as its factorization.

55683569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972000, while the sum is 47.

The square root of 55683569 is about 7462.1423867412. The cubic root of 55683569 is about 381.8642669911.

The spelling of 55683569 in words is "fifty-five million, six hundred eighty-three thousand, five hundred sixty-nine".