51000612 has 48 divisors (see below), whose sum is σ = 135700992. Its totient is φ = 14768640.

The previous prime is 51000571. The next prime is 51000619. The reversal of 51000612 is 21600015.

It is a junction number, because it is equal to n+sod(n) for n = 51000591 and 51000600.

It is not an unprimeable number, because it can be changed into a prime (51000619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6964 + ... + 12267.

It is an arithmetic number, because the mean of its divisors is an integer number (2827104).

Almost surely, 2^51000612 is an apocalyptic number.

51000612 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51000612 is an abundant number, since it is smaller than the sum of its proper divisors (84700380).

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

51000612 is a wasteful number, since it uses less digits than its factorization.

51000612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19268 (or 19266 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 51000612 is about 7141.4712769849. The cubic root of 51000612 is about 370.8444602926.

Adding to 51000612 its reverse (21600015), we get a palindrome (72600627).

The spelling of 51000612 in words is "fifty-one million, six hundred twelve", and thus it is an aban number.