51136803 has 12 divisors (see below), whose sum is σ = 73939320. Its totient is φ = 34056576.

The previous prime is 51136793. The next prime is 51136807. The reversal of 51136803 is 30863115.

It is not a de Polignac number, because 51136803 - 2⁶ = 51136739 is a prime.

It is a super-2 number, since 2×51136803² = 5229945242121618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51136807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9075 + ... + 13587.

It is an arithmetic number, because the mean of its divisors is an integer number (6161610).

Almost surely, 2^51136803 is an apocalyptic number.

51136803 is a deficient number, since it is larger than the sum of its proper divisors (22802517).

51136803 is a wasteful number, since it uses less digits than its factorization.

51136803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778 (or 5775 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 51136803 is about 7151.0001398406. Note that the first 3 decimals coincide. The cubic root of 51136803 is about 371.1742654070.

Adding to 51136803 its reverse (30863115), we get a palindrome (81999918).

The spelling of 51136803 in words is "fifty-one million, one hundred thirty-six thousand, eight hundred three".