55003513 has 8 divisors (see below), whose sum is σ = 56332800. Its totient is φ = 53690208.

The previous prime is 55003477. The next prime is 55003549. The reversal of 55003513 is 31530055.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55003477) and next prime (55003549).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55003513 - 2⁹ = 55003001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55003213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3120 + ... + 10942.

It is an arithmetic number, because the mean of its divisors is an integer number (7041600).

Almost surely, 2^55003513 is an apocalyptic number.

It is an amenable number.

55003513 is a deficient number, since it is larger than the sum of its proper divisors (1329287).

55003513 is an equidigital number, since it uses as much as digits as its factorization.

55003513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7991.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 55003513 is about 7416.4353297255. The cubic root of 55003513 is about 380.3033427353.

Adding to 55003513 its reverse (31530055), we get a palindrome (86533568).

The spelling of 55003513 in words is "fifty-five million, three thousand, five hundred thirteen".