51480468 has 96 divisors (see below), whose sum is σ = 147768320. Its totient is φ = 15396480.

The previous prime is 51480439. The next prime is 51480469. The reversal of 51480468 is 86408415.

51480468 is a `hidden beast` number, since 514 + 80 + 4 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51480469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51453 + ... + 52443.

Almost surely, 2^51480468 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 51480468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73884160).

51480468 is an abundant number, since it is smaller than the sum of its proper divisors (96287852).

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

51480468 is a wasteful number, since it uses less digits than its factorization.

51480468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 51480468 is about 7174.9890592251. The cubic root of 51480468 is about 372.0039021443.

The spelling of 51480468 in words is "fifty-one million, four hundred eighty thousand, four hundred sixty-eight".