55512013 has 8 divisors (see below), whose sum is σ = 56836640. Its totient is φ = 54200880.

The previous prime is 55512001. The next prime is 55512071. The reversal of 55512013 is 31021555.

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 55512013 - 2⁹ = 55511501 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 (55522013) 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, 5206 + ... + 11752.

It is an arithmetic number, because the mean of its divisors is an integer number (7104580).

Almost surely, 2^55512013 is an apocalyptic number.

It is an amenable number.

55512013 is a deficient number, since it is larger than the sum of its proper divisors (1324627).

55512013 is a wasteful number, since it uses less digits than its factorization.

55512013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6747.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55512013 is about 7450.6384290207. The cubic root of 55512013 is about 381.4717005622.

Adding to 55512013 its reverse (31021555), we get a palindrome (86533568).

The spelling of 55512013 in words is "fifty-five million, five hundred twelve thousand, thirteen".