55560545 has 4 divisors (see below), whose sum is σ = 66672660. Its totient is φ = 44448432.

The previous prime is 55560529. The next prime is 55560551. The reversal of 55560545 is 54506555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54506555 = 5 ⋅10901311.

It can be written as a sum of positive squares in 2 ways, for example, as 8720209 + 46840336 = 2953^2 + 6844^2 .

It is a cyclic number.

It is not a de Polignac number, because 55560545 - 2⁴ = 55560529 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5556050 + ... + 5556059.

It is an arithmetic number, because the mean of its divisors is an integer number (16668165).

Almost surely, 2^55560545 is an apocalyptic number.

It is an amenable number.

55560545 is a deficient number, since it is larger than the sum of its proper divisors (11112115).

55560545 is a wasteful number, since it uses less digits than its factorization.

55560545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112114.

The product of its (nonzero) digits is 75000, while the sum is 35.

The square root of 55560545 is about 7453.8946195932. The cubic root of 55560545 is about 381.5828368187.

The spelling of 55560545 in words is "fifty-five million, five hundred sixty thousand, five hundred forty-five".