51352230140 has 24 divisors (see below), whose sum is σ = 114183194832. Its totient is φ = 19332604160.

The previous prime is 51352230133. The next prime is 51352230161. The reversal of 51352230140 is 4103225315.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75517646 + ... + 75518325.

It is an arithmetic number, because the mean of its divisors is an integer number (4757633118).

Almost surely, 2^51352230140 is an apocalyptic number.

It is an amenable number.

51352230140 is an abundant number, since it is smaller than the sum of its proper divisors (62830964692).

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

51352230140 is a wasteful number, since it uses less digits than its factorization.

51352230140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151035997 (or 151035995 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 51352230140 its reverse (4103225315), we get a palindrome (55455455455).

The spelling of 51352230140 in words is "fifty-one billion, three hundred fifty-two million, two hundred thirty thousand, one hundred forty".