51152533140 has 144 divisors (see below), whose sum is σ = 151536829248. Its totient is φ = 12889738752.

The previous prime is 51152533139. The next prime is 51152533147. The reversal of 51152533140 is 4133525115.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 51152533098 and 51152533107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51152533147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2624712 + ... + 2644128.

It is an arithmetic number, because the mean of its divisors is an integer number (1052339092).

Almost surely, 2^51152533140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51152533140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75768414624).

51152533140 is an abundant number, since it is smaller than the sum of its proper divisors (100384296108).

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

51152533140 is a wasteful number, since it uses less digits than its factorization.

51152533140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19558 (or 19533 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 51152533140 in words is "fifty-one billion, one hundred fifty-two million, five hundred thirty-three thousand, one hundred forty".