55605357 has 12 divisors (see below), whose sum is σ = 80410044. Its totient is φ = 37028160.

The previous prime is 55605353. The next prime is 55605373. The reversal of 55605357 is 75350655.

55605357 is a `hidden beast` number, since 556 + 0 + 53 + 57 = 666.

55605357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 27185796 + 28419561 = 5214^2 + 5331^2 .

It is not a de Polignac number, because 55605357 - 2² = 55605353 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55605353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6307 + ... + 12287.

It is an arithmetic number, because the mean of its divisors is an integer number (6700837).

Almost surely, 2^55605357 is an apocalyptic number.

It is an amenable number.

55605357 is a deficient number, since it is larger than the sum of its proper divisors (24804687).

55605357 is a wasteful number, since it uses less digits than its factorization.

55605357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020 (or 7017 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 55605357 is about 7456.8999590983. The cubic root of 55605357 is about 381.6853969777.

The spelling of 55605357 in words is "fifty-five million, six hundred five thousand, three hundred fifty-seven".