55725055 has 8 divisors (see below), whose sum is σ = 66938112. Its totient is φ = 44534688.

The previous prime is 55725049. The next prime is 55725097. The reversal of 55725055 is 55052755.

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 55725055 - 2²³ = 47336447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55725055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309 + ... + 10561.

It is an arithmetic number, because the mean of its divisors is an integer number (8367264).

Almost surely, 2^55725055 is an apocalyptic number.

55725055 is a deficient number, since it is larger than the sum of its proper divisors (11213057).

55725055 is a wasteful number, since it uses less digits than its factorization.

55725055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11345.

The product of its (nonzero) digits is 43750, while the sum is 34.

The square root of 55725055 is about 7464.9216338820. The cubic root of 55725055 is about 381.9590770558.

The spelling of 55725055 in words is "fifty-five million, seven hundred twenty-five thousand, fifty-five".