51103008 has 192 divisors, whose sum is σ = 171763200. Its totient is φ = 14618880.

The previous prime is 51102983. The next prime is 51103057. The reversal of 51103008 is 80030115.

It is a happy number.

It is a super-2 number, since 2×51103008² = 5223034853296128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180435 + ... + 180717.

It is an arithmetic number, because the mean of its divisors is an integer number (894600).

Almost surely, 2^51103008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51103008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85881600).

51103008 is an abundant number, since it is smaller than the sum of its proper divisors (120660192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51103008 is a wasteful number, since it uses less digits than its factorization.

51103008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 51103008 is about 7148.6367931236. The cubic root of 51103008 is about 371.0924808743.

It can be divided in two parts, 5110 and 3008, that added together give a palindrome (8118).

The spelling of 51103008 in words is "fifty-one million, one hundred three thousand, eight".