51020233 has 8 divisors (see below), whose sum is σ = 58078656. Its totient is φ = 44365200.

The previous prime is 51020201. The next prime is 51020237. The reversal of 51020233 is 33202015.

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

It is not a de Polignac number, because 51020233 - 2⁵ = 51020201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51020237) 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, 100578 + ... + 101083.

It is an arithmetic number, because the mean of its divisors is an integer number (7259832).

Almost surely, 2^51020233 is an apocalyptic number.

It is an amenable number.

51020233 is a deficient number, since it is larger than the sum of its proper divisors (7058423).

51020233 is a wasteful number, since it uses less digits than its factorization.

51020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201695.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 51020233 is about 7142.8448814180. The cubic root of 51020233 is about 370.8920113967.

Adding to 51020233 its reverse (33202015), we get a palindrome (84222248).

The spelling of 51020233 in words is "fifty-one million, twenty thousand, two hundred thirty-three".