51400014 has 16 divisors (see below), whose sum is σ = 102911952. Its totient is φ = 17114688.

The previous prime is 51400001. The next prime is 51400039. The reversal of 51400014 is 41000415.

It is a super-2 number, since 2×51400014² = 5283922878400392, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51399966 and 51400002.

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, 2052 + ... + 10344.

It is an arithmetic number, because the mean of its divisors is an integer number (6431997).

Almost surely, 2^51400014 is an apocalyptic number.

51400014 is an abundant number, since it is smaller than the sum of its proper divisors (51511938).

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

51400014 is a wasteful number, since it uses less digits than its factorization.

51400014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 51400014 is about 7169.3803079485. The cubic root of 51400014 is about 371.8100110898.

Adding to 51400014 its reverse (41000415), we get a palindrome (92400429).

It can be divided in two parts, 51 and 400014, that added together give a triangular number (400065 = T₈₉₄).

The spelling of 51400014 in words is "fifty-one million, four hundred thousand, fourteen".