51012304252000 has 192 divisors, whose sum is σ = 154261209158784. Its totient is φ = 16144553318400.

The previous prime is 51012304251977. The next prime is 51012304252033. The reversal of 51012304252000 is 25240321015.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69707847 + ... + 70435846.

It is an arithmetic number, because the mean of its divisors is an integer number (803443797702).

Almost surely, 2^{51012304252000} is an apocalyptic number.

51012304252000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51012304252000 is an abundant number, since it is smaller than the sum of its proper divisors (103248904906784).

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

51012304252000 is a wasteful number, since it uses less digits than its factorization.

51012304252000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140143738 (or 140143720 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 51012304252000 its reverse (25240321015), we get a palindrome (51037544573015).

The spelling of 51012304252000 in words is "fifty-one trillion, twelve billion, three hundred four million, two hundred fifty-two thousand".