51528290 has 16 divisors (see below), whose sum is σ = 101183040. Its totient is φ = 18737520.

The previous prime is 51528289. The next prime is 51528307. The reversal of 51528290 is 9282515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234110 + ... + 234329.

It is an arithmetic number, because the mean of its divisors is an integer number (6323940).

Almost surely, 2^51528290 is an apocalyptic number.

51528290 is a deficient number, since it is larger than the sum of its proper divisors (49654750).

51528290 is a wasteful number, since it uses less digits than its factorization.

51528290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468457.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 51528290 is about 7178.3208342899. The cubic root of 51528290 is about 372.1190556227.

The spelling of 51528290 in words is "fifty-one million, five hundred twenty-eight thousand, two hundred ninety".