51043432 has 32 divisors (see below), whose sum is σ = 104940000. Its totient is φ = 23083200.

The previous prime is 51043429. The next prime is 51043493. The reversal of 51043432 is 23434015.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 17194 + ... + 19942.

It is an arithmetic number, because the mean of its divisors is an integer number (3279375).

Almost surely, 2^51043432 is an apocalyptic number.

It is an amenable number.

51043432 is an abundant number, since it is smaller than the sum of its proper divisors (53896568).

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

51043432 is a wasteful number, since it uses less digits than its factorization.

51043432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977 (or 2973 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 51043432 is about 7144.4686296463. The cubic root of 51043432 is about 370.9482179868.

Adding to 51043432 its reverse (23434015), we get a palindrome (74477447).

The spelling of 51043432 in words is "fifty-one million, forty-three thousand, four hundred thirty-two".