51430580 has 48 divisors (see below), whose sum is σ = 112062720. Its totient is φ = 19813248.

The previous prime is 51430579. The next prime is 51430591. The reversal of 51430580 is 8503415.

It is a super-3 number, since 3×51430580³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67562 + ... + 68318.

It is an arithmetic number, because the mean of its divisors is an integer number (2334640).

Almost surely, 2^51430580 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 51430580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56031360).

51430580 is an abundant number, since it is smaller than the sum of its proper divisors (60632140).

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

51430580 is a wasteful number, since it uses less digits than its factorization.

51430580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 51430580 is about 7171.5116955911. The cubic root of 51430580 is about 371.8836977934.

Adding to 51430580 its reverse (8503415), we get a palindrome (59933995).

The spelling of 51430580 in words is "fifty-one million, four hundred thirty thousand, five hundred eighty".