51036480 has 280 divisors, whose sum is σ = 199156320. Its totient is φ = 12303360.

The previous prime is 51036467. The next prime is 51036481. The reversal of 51036480 is 8463015.

51036480 is a `hidden beast` number, since 5 + 10 + 3 + 648 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51036481) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 285031 + ... + 285209.

Almost surely, 2^51036480 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 51036480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99578160).

51036480 is an abundant number, since it is smaller than the sum of its proper divisors (148119840).

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

51036480 is a wasteful number, since it uses less digits than its factorization.

51036480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 51036480 is about 7143.9820828443. The cubic root of 51036480 is about 370.9313764527.

Adding to 51036480 its reverse (8463015), we get a palindrome (59499495).

The spelling of 51036480 in words is "fifty-one million, thirty-six thousand, four hundred eighty".