51250008 has 16 divisors (see below), whose sum is σ = 128125080. Its totient is φ = 17083328.

The previous prime is 51250007. The next prime is 51250013. The reversal of 51250008 is 80005215.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067685 + ... + 1067732.

Almost surely, 2^51250008 is an apocalyptic number.

It is an amenable number.

51250008 is an abundant number, since it is smaller than the sum of its proper divisors (76875072).

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

51250008 is a wasteful number, since it uses less digits than its factorization.

51250008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135426 (or 2135422 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 51250008 is about 7158.9110903824. The cubic root of 51250008 is about 371.4479613997.

The spelling of 51250008 in words is "fifty-one million, two hundred fifty thousand, eight".