55401345 has 12 divisors (see below), whose sum is σ = 96029076. Its totient is φ = 29547360.

The previous prime is 55401299. The next prime is 55401383. The reversal of 55401345 is 54310455.

55401345 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 30869136 + 24532209 = 5556^2 + 4953^2 .

It is not a de Polignac number, because 55401345 - 2⁷ = 55401217 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 615526 + ... + 615615.

It is an arithmetic number, because the mean of its divisors is an integer number (8002423).

Almost surely, 2^55401345 is an apocalyptic number.

It is an amenable number.

55401345 is a deficient number, since it is larger than the sum of its proper divisors (40627731).

55401345 is a wasteful number, since it uses less digits than its factorization.

55401345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231152 (or 1231149 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 55401345 is about 7443.2079777472. The cubic root of 55401345 is about 381.2180329732.

The spelling of 55401345 in words is "fifty-five million, four hundred one thousand, three hundred forty-five".