55724493 has 12 divisors (see below), whose sum is σ = 81668384. Its totient is φ = 33772200.

The previous prime is 55724483. The next prime is 55724509. The reversal of 55724493 is 39442755.

55724493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55724493 - 2¹⁴ = 55708109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55724443) 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 in 11 ways as a sum of consecutive naturals, for example, 76393 + ... + 77118.

Almost surely, 2^55724493 is an apocalyptic number.

It is an amenable number.

55724493 is a deficient number, since it is larger than the sum of its proper divisors (25943891).

55724493 is a wasteful number, since it uses less digits than its factorization.

55724493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153536 (or 153525 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 55724493 is about 7464.8839910611. The cubic root of 55724493 is about 381.9577930031.

The spelling of 55724493 in words is "fifty-five million, seven hundred twenty-four thousand, four hundred ninety-three".