55050513 has 32 divisors (see below), whose sum is σ = 87539712. Its totient is φ = 30110400.

The previous prime is 55050493. The next prime is 55050521. The reversal of 55050513 is 31505055.

It is not a de Polignac number, because 55050513 - 2⁸ = 55050257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55050013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66643 + ... + 67463.

It is an arithmetic number, because the mean of its divisors is an integer number (2735616).

Almost surely, 2^55050513 is an apocalyptic number.

It is an amenable number.

55050513 is a deficient number, since it is larger than the sum of its proper divisors (32489199).

55050513 is a wasteful number, since it uses less digits than its factorization.

55050513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 55050513 is about 7419.6032912818. The cubic root of 55050513 is about 380.4116338087.

Adding to 55050513 its reverse (31505055), we get a palindrome (86555568).

The spelling of 55050513 in words is "fifty-five million, fifty thousand, five hundred thirteen".