51850086 has 16 divisors (see below), whose sum is σ = 107276400. Its totient is φ = 16687328.

The previous prime is 51850081. The next prime is 51850087. The reversal of 51850086 is 68005815.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51850081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148821 + ... + 149168.

It is an arithmetic number, because the mean of its divisors is an integer number (6704775).

Almost surely, 2^51850086 is an apocalyptic number.

51850086 is an abundant number, since it is smaller than the sum of its proper divisors (55426314).

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

51850086 is a wasteful number, since it uses less digits than its factorization.

51850086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298023.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 51850086 is about 7200.7003826017. The cubic root of 51850086 is about 372.8920808956.

The spelling of 51850086 in words is "fifty-one million, eight hundred fifty thousand, eighty-six".