55601560669 has 2 divisors, whose sum is σ = 55601560670. Its totient is φ = 55601560668.

The previous prime is 55601560591. The next prime is 55601560687. The reversal of 55601560669 is 96606510655.

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., 47606876100 + 7994684569 = 218190^2 + 89413^2 .

It is a cyclic number.

It is not a de Polignac number, because 55601560669 - 2¹⁵ = 55601527901 is a prime.

It is a super-2 number, since 2×55601560669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55601960669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27800780334 + 27800780335.

It is an arithmetic number, because the mean of its divisors is an integer number (27800780335).

Almost surely, 2^55601560669 is an apocalyptic number.

It is an amenable number.

55601560669 is a deficient number, since it is larger than the sum of its proper divisors (1).

55601560669 is an equidigital number, since it uses as much as digits as its factorization.

55601560669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 49.

The spelling of 55601560669 in words is "fifty-five billion, six hundred one million, five hundred sixty thousand, six hundred sixty-nine".