51110013 has 8 divisors (see below), whose sum is σ = 68750208. Its totient is φ = 33771584.

The previous prime is 51110011. The next prime is 51110023. The reversal of 51110013 is 31001115.

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 51110013 - 2¹ = 51110011 is a prime.

It is a super-2 number, since 2×51110013² = 5224466857720338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51110011) 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, 75045 + ... + 75722.

It is an arithmetic number, because the mean of its divisors is an integer number (8593776).

Almost surely, 2^51110013 is an apocalyptic number.

It is an amenable number.

51110013 is a deficient number, since it is larger than the sum of its proper divisors (17640195).

51110013 is a wasteful number, since it uses less digits than its factorization.

51110013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150883.

The product of its (nonzero) digits is 15, while the sum is 12.

The square root of 51110013 is about 7149.1267298881. The cubic root of 51110013 is about 371.1094360671.

Adding to 51110013 its reverse (31001115), we get a palindrome (82111128).

The spelling of 51110013 in words is "fifty-one million, one hundred ten thousand, thirteen".