51026330 has 16 divisors (see below), whose sum is σ = 94330440. Its totient is φ = 19858752.

The previous prime is 51026323. The next prime is 51026347. The reversal of 51026330 is 3362015.

It can be written as a sum of positive squares in 4 ways, for example, as 44528929 + 6497401 = 6673^2 + 2549^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68585 + ... + 69324.

Almost surely, 2^51026330 is an apocalyptic number.

51026330 is a deficient number, since it is larger than the sum of its proper divisors (43304110).

51026330 is a wasteful number, since it uses less digits than its factorization.

51026330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137953.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 51026330 is about 7143.2716594009. The cubic root of 51026330 is about 370.9067848724.

Adding to 51026330 its reverse (3362015), we get a palindrome (54388345).

The spelling of 51026330 in words is "fifty-one million, twenty-six thousand, three hundred thirty".