51030528 has 40 divisors (see below), whose sum is σ = 135952608. Its totient is φ = 17009664.

The previous prime is 51030509. The next prime is 51030533. The reversal of 51030528 is 82503015.

It is a super-2 number, since 2×51030528² = 5208229575917568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 51030498 and 51030507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15076 + ... + 18147.

Almost surely, 2^51030528 is an apocalyptic number.

It is an amenable number.

51030528 is an abundant number, since it is smaller than the sum of its proper divisors (84922080).

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

51030528 is an equidigital number, since it uses as much as digits as its factorization.

51030528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33244 (or 33228 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 51030528 is about 7143.5654963050. The cubic root of 51030528 is about 370.9169562486.

The spelling of 51030528 in words is "fifty-one million, thirty thousand, five hundred twenty-eight".