51015108 has 12 divisors (see below), whose sum is σ = 119035280. Its totient is φ = 17005032.

The previous prime is 51015103. The next prime is 51015131. The reversal of 51015108 is 80151015.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (51015103) 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, 2125618 + ... + 2125641.

Almost surely, 2^51015108 is an apocalyptic number.

It is an amenable number.

51015108 is an abundant number, since it is smaller than the sum of its proper divisors (68020172).

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

51015108 is a wasteful number, since it uses less digits than its factorization.

51015108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251266 (or 4251264 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 51015108 is about 7142.4861217926. The cubic root of 51015108 is about 370.8795922374.

The spelling of 51015108 in words is "fifty-one million, fifteen thousand, one hundred eight".