51063450 has 144 divisors (see below), whose sum is σ = 142865856. Its totient is φ = 12038400.

The previous prime is 51063449. The next prime is 51063487. The reversal of 51063450 is 5436015.

It is a self number, because there is not a number n which added to its sum of digits gives 51063450.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1245430 + ... + 1245470.

It is an arithmetic number, because the mean of its divisors is an integer number (992124).

Almost surely, 2^51063450 is an apocalyptic number.

51063450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51063450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71432928).

51063450 is an abundant number, since it is smaller than the sum of its proper divisors (91802406).

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

51063450 is a wasteful number, since it uses less digits than its factorization.

51063450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 51063450 is about 7145.8694362548. The cubic root of 51063450 is about 370.9967039567.

Adding to 51063450 its reverse (5436015), we get a palindrome (56499465).

The spelling of 51063450 in words is "fifty-one million, sixty-three thousand, four hundred fifty".