51450532 has 48 divisors (see below), whose sum is σ = 106365952. Its totient is φ = 21319200.

The previous prime is 51450527. The next prime is 51450533. The reversal of 51450532 is 23505415.

It is a junction number, because it is equal to n+sod(n) for n = 51450497 and 51450506.

It is not an unprimeable number, because it can be changed into a prime (51450533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181663 + ... + 181945.

Almost surely, 2^51450532 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 51450532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53182976).

51450532 is an abundant number, since it is smaller than the sum of its proper divisors (54915420).

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

51450532 is a wasteful number, since it uses less digits than its factorization.

51450532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 51450532 is about 7172.9026202786. The cubic root of 51450532 is about 371.9317811468.

Adding to 51450532 its reverse (23505415), we get a palindrome (74955947).

The spelling of 51450532 in words is "fifty-one million, four hundred fifty thousand, five hundred thirty-two".