55530055 has 16 divisors (see below), whose sum is σ = 76285440. Its totient is φ = 38012832.

The previous prime is 55530053. The next prime is 55530089. The reversal of 55530055 is 55003555.

It is a cyclic number.

It is not a de Polignac number, because 55530055 - 2¹ = 55530053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55530053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29142 + ... + 30988.

It is an arithmetic number, because the mean of its divisors is an integer number (4767840).

Almost surely, 2^55530055 is an apocalyptic number.

55530055 is a deficient number, since it is larger than the sum of its proper divisors (20755385).

55530055 is a wasteful number, since it uses less digits than its factorization.

55530055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718.

The product of its (nonzero) digits is 9375, while the sum is 28.

The square root of 55530055 is about 7451.8490993847. The cubic root of 55530055 is about 381.5130235513.

The spelling of 55530055 in words is "fifty-five million, five hundred thirty thousand, fifty-five".