55351403 has 2 divisors, whose sum is σ = 55351404. Its totient is φ = 55351402.

The previous prime is 55351397. The next prime is 55351411. The reversal of 55351403 is 30415355.

55351403 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 55351403 - 2²⁴ = 38574187 is a prime.

It is a Sophie Germain prime.

It is equal to p_3301937 and since 55351403 and 3301937 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 (55351423) 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, 27675701 + 27675702.

It is an arithmetic number, because the mean of its divisors is an integer number (27675702).

Almost surely, 2^55351403 is an apocalyptic number.

55351403 is a deficient number, since it is larger than the sum of its proper divisors (1).

55351403 is an equidigital number, since it uses as much as digits as its factorization.

55351403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 55351403 is about 7439.8523506855. The cubic root of 55351403 is about 381.1034478203.

Adding to 55351403 its reverse (30415355), we get a palindrome (85766758).

The spelling of 55351403 in words is "fifty-five million, three hundred fifty-one thousand, four hundred three".