55349551 has 2 divisors, whose sum is σ = 55349552. Its totient is φ = 55349550.

The previous prime is 55349537. The next prime is 55349573. The reversal of 55349551 is 15594355.

55349551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55349551 - 2⁵ = 55349519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55349551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55349531) 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 as a sum of consecutive naturals, namely, 27674775 + 27674776.

It is an arithmetic number, because the mean of its divisors is an integer number (27674776).

Almost surely, 2^55349551 is an apocalyptic number.

55349551 is a deficient number, since it is larger than the sum of its proper divisors (1).

55349551 is an equidigital number, since it uses as much as digits as its factorization.

55349551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67500, while the sum is 37.

The square root of 55349551 is about 7439.7278848087. The cubic root of 55349551 is about 381.0991973321.

The spelling of 55349551 in words is "fifty-five million, three hundred forty-nine thousand, five hundred fifty-one".