51628790 has 16 divisors (see below), whose sum is σ = 96972768. Its totient is φ = 19753536.

The previous prime is 51628781. The next prime is 51628817. The reversal of 51628790 is 9782615.

It is a congruent number.

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, 112007 + ... + 112466.

It is an arithmetic number, because the mean of its divisors is an integer number (6060798).

Almost surely, 2^51628790 is an apocalyptic number.

51628790 is a deficient number, since it is larger than the sum of its proper divisors (45343978).

51628790 is a wasteful number, since it uses less digits than its factorization.

51628790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224503.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 51628790 is about 7185.3176686908. The cubic root of 51628790 is about 372.3608236426.

The spelling of 51628790 in words is "fifty-one million, six hundred twenty-eight thousand, seven hundred ninety".