51025344312 has 64 divisors (see below), whose sum is σ = 128550240000. Its totient is φ = 16876998144.

The previous prime is 51025344277. The next prime is 51025344317. The reversal of 51025344312 is 21344352015.

It is a self number, because there is not a number n which added to its sum of digits gives 51025344312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025344317) 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, 9448189 + ... + 9453587.

It is an arithmetic number, because the mean of its divisors is an integer number (2008597500).

Almost surely, 2^51025344312 is an apocalyptic number.

It is an amenable number.

51025344312 is an abundant number, since it is smaller than the sum of its proper divisors (77524895688).

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

51025344312 is a wasteful number, since it uses less digits than its factorization.

51025344312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380 (or 8376 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 51025344312 its reverse (21344352015), we get a palindrome (72369696327).

The spelling of 51025344312 in words is "fifty-one billion, twenty-five million, three hundred forty-four thousand, three hundred twelve".