55315424 has 24 divisors (see below), whose sum is σ = 109068120. Its totient is φ = 27615616.

The previous prime is 55315423. The next prime is 55315427. The reversal of 55315424 is 42451355.

It is a super-2 number, since 2×55315424² = 6119592264599552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55315423) 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 in 3 ways as a sum of consecutive naturals, for example, 39602 + ... + 40974.

It is an arithmetic number, because the mean of its divisors is an integer number (4544505).

Almost surely, 2^55315424 is an apocalyptic number.

It is an amenable number.

55315424 is a deficient number, since it is larger than the sum of its proper divisors (53752696).

55315424 is a wasteful number, since it uses less digits than its factorization.

55315424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642 (or 2634 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 55315424 is about 7437.4339660934. The cubic root of 55315424 is about 381.0208561593.

Adding to 55315424 its reverse (42451355), we get a palindrome (97766779).

The spelling of 55315424 in words is "fifty-five million, three hundred fifteen thousand, four hundred twenty-four".