51151012 has 24 divisors (see below), whose sum is σ = 101021760. Its totient is φ = 22448160.

The previous prime is 51151007. The next prime is 51151013. The reversal of 51151012 is 21015115.

It is not an unprimeable number, because it can be changed into a prime (51151013) 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, 18768 + ... + 21319.

It is an arithmetic number, because the mean of its divisors is an integer number (4209240).

Almost surely, 2^51151012 is an apocalyptic number.

It is an amenable number.

51151012 is a deficient number, since it is larger than the sum of its proper divisors (49870748).

51151012 is a wasteful number, since it uses less digits than its factorization.

51151012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40131 (or 40129 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 51151012 is about 7151.9935682298. The cubic root of 51151012 is about 371.2086406933.

Adding to 51151012 its reverse (21015115), we get a palindrome (72166127).

The spelling of 51151012 in words is "fifty-one million, one hundred fifty-one thousand, twelve".