51023300 has 18 divisors (see below), whose sum is σ = 110720778. Its totient is φ = 20409280.

The previous prime is 51023293. The next prime is 51023309. The reversal of 51023300 is 332015.

It can be written as a sum of positive squares in 3 ways, for example, as 3936256 + 47087044 = 1984^2 + 6862^2 .

It is not an unprimeable number, because it can be changed into a prime (51023309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 255017 + ... + 255216.

Almost surely, 2^51023300 is an apocalyptic number.

51023300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51023300 is an abundant number, since it is smaller than the sum of its proper divisors (59697478).

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

51023300 is a wasteful number, since it uses less digits than its factorization.

51023300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510247 (or 510240 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 51023300 is about 7143.0595685602. The cubic root of 51023300 is about 370.8994431085.

Adding to 51023300 its reverse (332015), we get a palindrome (51355315).

The spelling of 51023300 in words is "fifty-one million, twenty-three thousand, three hundred".