51416072 has 16 divisors (see below), whose sum is σ = 99729900. Its totient is φ = 24821440.

The previous prime is 51416069. The next prime is 51416083. The reversal of 51416072 is 27061415.

It can be written as a sum of positive squares in 2 ways, for example, as 51351556 + 64516 = 7166^2 + 254^2 .

It is a super-2 number, since 2×51416072² = 5287224919818368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110579 + ... + 111042.

Almost surely, 2^51416072 is an apocalyptic number.

It is an amenable number.

51416072 is a deficient number, since it is larger than the sum of its proper divisors (48313828).

51416072 is a wasteful number, since it uses less digits than its factorization.

51416072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221656 (or 221652 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 51416072 is about 7170.5001220278. The cubic root of 51416072 is about 371.8487264068.

Adding to 51416072 its reverse (27061415), we get a palindrome (78477487).

The spelling of 51416072 in words is "fifty-one million, four hundred sixteen thousand, seventy-two".