55430523 has 12 divisors (see below), whose sum is σ = 84776328. Its totient is φ = 34779840.

The previous prime is 55430521. The next prime is 55430537. The reversal of 55430523 is 32503455.

It is not a de Polignac number, because 55430523 - 2¹ = 55430521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55430521) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 180993 + ... + 181298.

It is an arithmetic number, because the mean of its divisors is an integer number (7064694).

Almost surely, 2^55430523 is an apocalyptic number.

55430523 is a deficient number, since it is larger than the sum of its proper divisors (29345805).

55430523 is a wasteful number, since it uses less digits than its factorization.

55430523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362314 (or 362311 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 55430523 is about 7445.1677617096. The cubic root of 55430523 is about 381.2849460755.

Adding to 55430523 its reverse (32503455), we get a palindrome (87933978).

The spelling of 55430523 in words is "fifty-five million, four hundred thirty thousand, five hundred twenty-three".