51232302000 has 480 divisors, whose sum is σ = 196024435776. Its totient is φ = 12367872000.

The previous prime is 51232301977. The next prime is 51232302019. The reversal of 51232302000 is 20323215.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69893634 + ... + 69894366.

Almost surely, 2^51232302000 is an apocalyptic number.

51232302000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51232302000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98012217888).

51232302000 is an abundant number, since it is smaller than the sum of its proper divisors (144792133776).

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

51232302000 is a wasteful number, since it uses less digits than its factorization.

51232302000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 51232302000 its reverse (20323215), we get a palindrome (51252625215).

The spelling of 51232302000 in words is "fifty-one billion, two hundred thirty-two million, three hundred two thousand".