51433404 has 48 divisors (see below), whose sum is σ = 134472576. Its totient is φ = 15163200.

The previous prime is 51433379. The next prime is 51433423. The reversal of 51433404 is 40433415.

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, 382 + ... + 10149.

It is an arithmetic number, because the mean of its divisors is an integer number (2801512).

Almost surely, 2^51433404 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 51433404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67236288).

51433404 is an abundant number, since it is smaller than the sum of its proper divisors (83039172).

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

51433404 is a wasteful number, since it uses less digits than its factorization.

51433404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10586 (or 10584 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 51433404 is about 7171.7085830365. The cubic root of 51433404 is about 371.8905042520.

Adding to 51433404 its reverse (40433415), we get a palindrome (91866819).

The spelling of 51433404 in words is "fifty-one million, four hundred thirty-three thousand, four hundred four".