55527805 has 8 divisors (see below), whose sum is σ = 66807000. Its totient is φ = 44306496.

The previous prime is 55527803. The next prime is 55527809. The reversal of 55527805 is 50872555.

It can be written as a sum of positive squares in 4 ways, for example, as 10404 + 55517401 = 102^2 + 7451^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55527805 - 2¹ = 55527803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55527803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12330 + ... + 16219.

It is an arithmetic number, because the mean of its divisors is an integer number (8350875).

Almost surely, 2^55527805 is an apocalyptic number.

It is an amenable number.

55527805 is a deficient number, since it is larger than the sum of its proper divisors (11279195).

55527805 is a wasteful number, since it uses less digits than its factorization.

55527805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28943.

The product of its (nonzero) digits is 70000, while the sum is 37.

The square root of 55527805 is about 7451.6981286147. The cubic root of 55527805 is about 381.5078706907.

The spelling of 55527805 in words is "fifty-five million, five hundred twenty-seven thousand, eight hundred five".