51250006 has 8 divisors (see below), whose sum is σ = 79354944. Its totient is φ = 24798360.

The previous prime is 51249997. The next prime is 51250007. The reversal of 51250006 is 60005215.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51250007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413245 + ... + 413368.

It is an arithmetic number, because the mean of its divisors is an integer number (9919368).

Almost surely, 2^51250006 is an apocalyptic number.

51250006 is a deficient number, since it is larger than the sum of its proper divisors (28104938).

51250006 is a wasteful number, since it uses less digits than its factorization.

51250006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826646.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 51250006 is about 7158.9109506963. The cubic root of 51250006 is about 371.4479565679.

The spelling of 51250006 in words is "fifty-one million, two hundred fifty thousand, six".