51400086 has 16 divisors (see below), whose sum is σ = 104102400. Its totient is φ = 16916328.

The previous prime is 51400079. The next prime is 51400091. The reversal of 51400086 is 68000415.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53746 + ... + 54693.

It is an arithmetic number, because the mean of its divisors is an integer number (6506400).

Almost surely, 2^51400086 is an apocalyptic number.

51400086 is an abundant number, since it is smaller than the sum of its proper divisors (52702314).

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

51400086 is a wasteful number, since it uses less digits than its factorization.

51400086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108523.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 51400086 is about 7169.3853293013. The cubic root of 51400086 is about 371.8101846975.

The spelling of 51400086 in words is "fifty-one million, four hundred thousand, eighty-six".