51270528 has 128 divisors (see below), whose sum is σ = 144921600. Its totient is φ = 16035840.

The previous prime is 51270523. The next prime is 51270539. The reversal of 51270528 is 82507215.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 51270495 and 51270504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51270523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702300 + ... + 702372.

It is an arithmetic number, because the mean of its divisors is an integer number (1132200).

Almost surely, 2^51270528 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 51270528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72460800).

51270528 is an abundant number, since it is smaller than the sum of its proper divisors (93651072).

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

51270528 is a wasteful number, since it uses less digits than its factorization.

51270528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 51270528 is about 7160.3441258085. The cubic root of 51270528 is about 371.4975294903.

The spelling of 51270528 in words is "fifty-one million, two hundred seventy thousand, five hundred twenty-eight".