55560149 has 4 divisors (see below), whose sum is σ = 55765440. Its totient is φ = 55354860.

The previous prime is 55560139. The next prime is 55560173. The reversal of 55560149 is 94106555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94106555 = 5 ⋅18821311.

It is a cyclic number.

It is not a de Polignac number, because 55560149 - 2⁴ = 55560133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55560139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102239 + ... + 102780.

It is an arithmetic number, because the mean of its divisors is an integer number (13941360).

Almost surely, 2^55560149 is an apocalyptic number.

It is an amenable number.

55560149 is a deficient number, since it is larger than the sum of its proper divisors (205291).

55560149 is a wasteful number, since it uses less digits than its factorization.

55560149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205290.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 55560149 is about 7453.8680562511. The cubic root of 55560149 is about 381.5819302572.

The spelling of 55560149 in words is "fifty-five million, five hundred sixty thousand, one hundred forty-nine".