51434560 has 56 divisors (see below), whose sum is σ = 124358400. Its totient is φ = 20258304.

The previous prime is 51434491. The next prime is 51434597. The reversal of 51434560 is 6543415.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20241 + ... + 22639.

Almost surely, 2^51434560 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 51434560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62179200).

51434560 is an abundant number, since it is smaller than the sum of its proper divisors (72923840).

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

51434560 is a wasteful number, since it uses less digits than its factorization.

51434560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483 (or 2473 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 51434560 is about 7171.7891770464. The cubic root of 51434560 is about 371.8932903934.

Adding to 51434560 its reverse (6543415), we get a palindrome (57977975).

The spelling of 51434560 in words is "fifty-one million, four hundred thirty-four thousand, five hundred sixty".