51432048 has 120 divisors (see below), whose sum is σ = 153552672. Its totient is φ = 16034304.

The previous prime is 51432047. The next prime is 51432061. The reversal of 51432048 is 84023415.

It is a super-2 number, since 2×51432048² = 5290511122948608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51432047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175390 + ... + 175682.

Almost surely, 2^51432048 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 51432048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76776336).

51432048 is an abundant number, since it is smaller than the sum of its proper divisors (102120624).

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

51432048 is a wasteful number, since it uses less digits than its factorization.

51432048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 51432048 is about 7171.6140442720. The cubic root of 51432048 is about 371.8872360261.

The spelling of 51432048 in words is "fifty-one million, four hundred thirty-two thousand, forty-eight".