51560073 has 6 divisors (see below), whose sum is σ = 74475674. Its totient is φ = 34373376.

The previous prime is 51560023. The next prime is 51560101. The reversal of 51560073 is 37006515.

51560073 is a `hidden beast` number, since 51 + 5 + 600 + 7 + 3 = 666.

51560073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50808384 + 751689 = 7128^2 + 867^2 .

It is not a de Polignac number, because 51560073 - 2⁶ = 51560009 is a prime.

It is a super-2 number, since 2×51560073² = 5316882255530658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51560023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2864440 + ... + 2864457.

Almost surely, 2^51560073 is an apocalyptic number.

It is an amenable number.

51560073 is a deficient number, since it is larger than the sum of its proper divisors (22915601).

51560073 is a wasteful number, since it uses less digits than its factorization.

51560073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728903 (or 5728900 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 51560073 is about 7180.5343115955. The cubic root of 51560073 is about 372.1955484198.

Adding to 51560073 its reverse (37006515), we get a palindrome (88566588).

The spelling of 51560073 in words is "fifty-one million, five hundred sixty thousand, seventy-three".