55645270 has 8 divisors (see below), whose sum is σ = 100161504. Its totient is φ = 22258104.

The previous prime is 55645253. The next prime is 55645273. The reversal of 55645270 is 7254655.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55645273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2782254 + ... + 2782273.

It is an arithmetic number, because the mean of its divisors is an integer number (12520188).

Almost surely, 2^55645270 is an apocalyptic number.

55645270 is a deficient number, since it is larger than the sum of its proper divisors (44516234).

55645270 is a wasteful number, since it uses less digits than its factorization.

55645270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564534.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 55645270 is about 7459.5757252005. The cubic root of 55645270 is about 381.7766985269.

The spelling of 55645270 in words is "fifty-five million, six hundred forty-five thousand, two hundred seventy".