51060040 has 16 divisors (see below), whose sum is σ = 114885180. Its totient is φ = 20424000.

The previous prime is 51060019. The next prime is 51060059. The reversal of 51060040 is 4006015.

It can be written as a sum of positive squares in 2 ways, for example, as 47969476 + 3090564 = 6926^2 + 1758^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51059996 and 51060023.

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 3 ways as a sum of consecutive naturals, for example, 638211 + ... + 638290.

Almost surely, 2^51060040 is an apocalyptic number.

It is an amenable number.

51060040 is an abundant number, since it is smaller than the sum of its proper divisors (63825140).

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

51060040 is a wasteful number, since it uses less digits than its factorization.

51060040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276512 (or 1276508 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 51060040 is about 7145.6308328936. The cubic root of 51060040 is about 370.9884454279.

Adding to 51060040 its reverse (4006015), we get a palindrome (55066055).

The spelling of 51060040 in words is "fifty-one million, sixty thousand, forty".