51280826 has 8 divisors (see below), whose sum is σ = 77324544. Its totient is φ = 25505980.

The previous prime is 51280819. The next prime is 51280841. The reversal of 51280826 is 62808215.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51280792 and 51280801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66740 + ... + 67503.

It is an arithmetic number, because the mean of its divisors is an integer number (9665568).

Almost surely, 2^51280826 is an apocalyptic number.

51280826 is a deficient number, since it is larger than the sum of its proper divisors (26043718).

51280826 is a wasteful number, since it uses less digits than its factorization.

51280826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134436.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 51280826 is about 7161.0631892199. The cubic root of 51280826 is about 371.5224003443.

The spelling of 51280826 in words is "fifty-one million, two hundred eighty thousand, eight hundred twenty-six".