51970048 has 68 divisors (see below), whose sum is σ = 113769628. Its totient is φ = 23592960.

The previous prime is 51970033. The next prime is 51970049. The reversal of 51970048 is 84007915.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4194304 + 47775744 = 2048^2 + 6912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51969995 and 51970022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51970049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851938 + ... + 851998.

Almost surely, 2^51970048 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 51970048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56884814).

51970048 is an abundant number, since it is smaller than the sum of its proper divisors (61799580).

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

51970048 is an frugal number, since it uses more digits than its factorization.

51970048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 51970048 is about 7209.0254542483. The cubic root of 51970048 is about 373.1794377036.

The spelling of 51970048 in words is "fifty-one million, nine hundred seventy thousand, forty-eight".