55085651 has 2 divisors, whose sum is σ = 55085652. Its totient is φ = 55085650.

The previous prime is 55085647. The next prime is 55085659. The reversal of 55085651 is 15658055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55085651 - 2² = 55085647 is a prime.

It is equal to p_3287069 and since 55085651 and 3287069 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55085659) 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 as a sum of consecutive naturals, namely, 27542825 + 27542826.

It is an arithmetic number, because the mean of its divisors is an integer number (27542826).

Almost surely, 2^55085651 is an apocalyptic number.

55085651 is a deficient number, since it is larger than the sum of its proper divisors (1).

55085651 is an equidigital number, since it uses as much as digits as its factorization.

55085651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 55085651 is about 7421.9708299076. The cubic root of 55085651 is about 380.4925537995.

The spelling of 55085651 in words is "fifty-five million, eighty-five thousand, six hundred fifty-one".