51359448 has 128 divisors (see below), whose sum is σ = 158976000. Its totient is φ = 13773312.

The previous prime is 51359443. The next prime is 51359461. The reversal of 51359448 is 84495315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51359443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139761 + ... + 140127.

It is an arithmetic number, because the mean of its divisors is an integer number (1242000).

Almost surely, 2^51359448 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 51359448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79488000).

51359448 is an abundant number, since it is smaller than the sum of its proper divisors (107616552).

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

51359448 is a wasteful number, since it uses less digits than its factorization.

51359448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 396 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 51359448 is about 7166.5506347196. The cubic root of 51359448 is about 371.7121718522.

The spelling of 51359448 in words is "fifty-one million, three hundred fifty-nine thousand, four hundred forty-eight".