51890288 has 10 divisors (see below), whose sum is σ = 100537464. Its totient is φ = 25945136.

The previous prime is 51890269. The next prime is 51890299. The reversal of 51890288 is 88209815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1621556 + ... + 1621587.

Almost surely, 2^51890288 is an apocalyptic number.

It is an amenable number.

51890288 is a deficient number, since it is larger than the sum of its proper divisors (48647176).

51890288 is a wasteful number, since it uses less digits than its factorization.

51890288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243151 (or 3243145 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 51890288 is about 7203.4913757150. The cubic root of 51890288 is about 372.9884300426.

The spelling of 51890288 in words is "fifty-one million, eight hundred ninety thousand, two hundred eighty-eight".