51453362040 has 128 divisors (see below), whose sum is σ = 157212057600. Its totient is φ = 13469066240.

The previous prime is 51453361963. The next prime is 51453362047. The reversal of 51453362040 is 4026335415.

It is a junction number, because it is equal to n+sod(n) for n = 51453361992 and 51453362010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51453362047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1972201 + ... + 1998119.

It is an arithmetic number, because the mean of its divisors is an integer number (1228219200).

Almost surely, 2^51453362040 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 51453362040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78606028800).

51453362040 is an abundant number, since it is smaller than the sum of its proper divisors (105758695560).

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

51453362040 is a wasteful number, since it uses less digits than its factorization.

51453362040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26237 (or 26233 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 51453362040 its reverse (4026335415), we get a palindrome (55479697455).

The spelling of 51453362040 in words is "fifty-one billion, four hundred fifty-three million, three hundred sixty-two thousand, forty".