51452480 has 28 divisors (see below), whose sum is σ = 122521980. Its totient is φ = 20580864.

The previous prime is 51452441. The next prime is 51452483. The reversal of 51452480 is 8425415.

It can be written as a sum of positive squares in 2 ways, for example, as 23658496 + 27793984 = 4864^2 + 5272^2 .

It is not an unprimeable number, because it can be changed into a prime (51452483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80075 + ... + 80714.

It is an arithmetic number, because the mean of its divisors is an integer number (4375785).

Almost surely, 2^51452480 is an apocalyptic number.

It is an amenable number.

51452480 is an abundant number, since it is smaller than the sum of its proper divisors (71069500).

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

51452480 is a wasteful number, since it uses less digits than its factorization.

51452480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160806 (or 160796 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 51452480 is about 7173.0384078158. The cubic root of 51452480 is about 371.9364750663.

Adding to 51452480 its reverse (8425415), we get a palindrome (59877895).

The spelling of 51452480 in words is "fifty-one million, four hundred fifty-two thousand, four hundred eighty".