51304933602 has 72 divisors (see below), whose sum is σ = 124309898076. Its totient is φ = 15786080928.

The previous prime is 51304933571. The next prime is 51304933609. The reversal of 51304933602 is 20633940315.

It is a happy number.

51304933602 is a `hidden beast` number, since 5 + 1 + 3 + 0 + 49 + 3 + 3 + 602 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42029510121 + 9275423481 = 205011^2 + 96309^2 .

It is not an unprimeable number, because it can be changed into a prime (51304933609) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20208 + ... + 320964.

Almost surely, 2^51304933602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51304933602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62154949038).

51304933602 is an abundant number, since it is smaller than the sum of its proper divisors (73004964474).

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

51304933602 is an equidigital number, since it uses as much as digits as its factorization.

51304933602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300796 (or 300775 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

It can be divided in two parts, 51304 and 933602, that added together give a triangular number (984906 = T₁₄₀₃).

The spelling of 51304933602 in words is "fifty-one billion, three hundred four million, nine hundred thirty-three thousand, six hundred two".