51061612 has 24 divisors (see below), whose sum is σ = 102652704. Its totient is φ = 21770112.

The previous prime is 51061601. The next prime is 51061613. The reversal of 51061612 is 21616015.

It is not an unprimeable number, because it can be changed into a prime (51061613) 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, 888 + ... + 10144.

It is an arithmetic number, because the mean of its divisors is an integer number (4277196).

Almost surely, 2^51061612 is an apocalyptic number.

It is an amenable number.

51061612 is an abundant number, since it is smaller than the sum of its proper divisors (51591092).

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

51061612 is a wasteful number, since it uses less digits than its factorization.

51061612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9465 (or 9463 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 51061612 is about 7145.7408293332. The cubic root of 51061612 is about 370.9922526311.

Adding to 51061612 its reverse (21616015), we get a palindrome (72677627).

The spelling of 51061612 in words is "fifty-one million, sixty-one thousand, six hundred twelve".