55506545 has 8 divisors (see below), whose sum is σ = 66667200. Its totient is φ = 44365680.

The previous prime is 55506487. The next prime is 55506569. The reversal of 55506545 is 54560555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55506545 - 2¹⁰ = 55505521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2156 + ... + 10754.

It is an arithmetic number, because the mean of its divisors is an integer number (8333400).

Almost surely, 2^55506545 is an apocalyptic number.

It is an amenable number.

55506545 is a deficient number, since it is larger than the sum of its proper divisors (11160655).

55506545 is a wasteful number, since it uses less digits than its factorization.

55506545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9895.

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

The square root of 55506545 is about 7450.2714715640. The cubic root of 55506545 is about 381.4591750106.

The spelling of 55506545 in words is "fifty-five million, five hundred six thousand, five hundred forty-five".