55124513 has 4 divisors (see below), whose sum is σ = 55489728. Its totient is φ = 54759300.

The previous prime is 55124507. The next prime is 55124521. The reversal of 55124513 is 31542155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55124513 - 2⁴ = 55124497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55424513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182381 + ... + 182682.

It is an arithmetic number, because the mean of its divisors is an integer number (13872432).

Almost surely, 2^55124513 is an apocalyptic number.

It is an amenable number.

55124513 is a deficient number, since it is larger than the sum of its proper divisors (365215).

55124513 is a wasteful number, since it uses less digits than its factorization.

55124513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365214.

The product of its digits is 3000, while the sum is 26.

The square root of 55124513 is about 7424.5884061004. The cubic root of 55124513 is about 380.5820097980.

Adding to 55124513 its reverse (31542155), we get a palindrome (86666668).

The spelling of 55124513 in words is "fifty-five million, one hundred twenty-four thousand, five hundred thirteen".