55605055 has 8 divisors (see below), whose sum is σ = 72792144. Its totient is φ = 40440000.

The previous prime is 55605031. The next prime is 55605073. The reversal of 55605055 is 55050655.

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

It is not a de Polignac number, because 55605055 - 2⁹ = 55604543 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 505446 + ... + 505555.

It is an arithmetic number, because the mean of its divisors is an integer number (9099018).

Almost surely, 2^55605055 is an apocalyptic number.

55605055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55605055 is a deficient number, since it is larger than the sum of its proper divisors (17187089).

55605055 is a wasteful number, since it uses less digits than its factorization.

55605055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011017.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 55605055 is about 7456.8797093691. The cubic root of 55605055 is about 381.6847059819.

The spelling of 55605055 in words is "fifty-five million, six hundred five thousand, fifty-five".