51124528 has 120 divisors (see below), whose sum is σ = 127619808. Its totient is φ = 19408896.

The previous prime is 51124519. The next prime is 51124531. The reversal of 51124528 is 82542115.

It is a super-2 number, since 2×51124528² = 5227434726445568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 51124496 and 51124505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 700300 + ... + 700372.

Almost surely, 2^51124528 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 51124528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63809904).

51124528 is an abundant number, since it is smaller than the sum of its proper divisors (76495280).

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

51124528 is a wasteful number, since it uses less digits than its factorization.

51124528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 132 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

The square root of 51124528 is about 7150.1418167754. The cubic root of 51124528 is about 371.1445638454.

The spelling of 51124528 in words is "fifty-one million, one hundred twenty-four thousand, five hundred twenty-eight".