51301432 has 48 divisors (see below), whose sum is σ = 120513960. Its totient is φ = 20293056.

The previous prime is 51301421. The next prime is 51301433. The reversal of 51301432 is 23410315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51301433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63 + ... + 10129.

Almost surely, 2^51301432 is an apocalyptic number.

51301432 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51301432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60256980).

51301432 is an abundant number, since it is smaller than the sum of its proper divisors (69212528).

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

51301432 is a wasteful number, since it uses less digits than its factorization.

51301432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100 (or 10089 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 51301432 is about 7162.5017975565. The cubic root of 51301432 is about 371.5721562083.

Adding to 51301432 its reverse (23410315), we get a palindrome (74711747).

The spelling of 51301432 in words is "fifty-one million, three hundred one thousand, four hundred thirty-two".