51133005320 has 32 divisors (see below), whose sum is σ = 119016480600. Its totient is φ = 19747918848.

The previous prime is 51133005277. The next prime is 51133005379. The reversal of 51133005320 is 2350033115.

It can be written as a sum of positive squares in 4 ways, for example, as 50717742436 + 415262884 = 225206^2 + 20378^2 .

It is a super-2 number, since 2×51133005320² (a number of 22 digits) contains 22 as substring.

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, 22038929 + ... + 22041248.

Almost surely, 2^51133005320 is an apocalyptic number.

It is an amenable number.

51133005320 is an abundant number, since it is smaller than the sum of its proper divisors (67883475280).

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

51133005320 is a wasteful number, since it uses less digits than its factorization.

51133005320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44080217 (or 44080213 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

Adding to 51133005320 its reverse (2350033115), we get a palindrome (53483038435).

The spelling of 51133005320 in words is "fifty-one billion, one hundred thirty-three million, five thousand, three hundred twenty".