51070540 has 12 divisors (see below), whose sum is σ = 107248176. Its totient is φ = 20428208.

The previous prime is 51070531. The next prime is 51070553. The reversal of 51070540 is 4507015.

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, 1276744 + ... + 1276783.

It is an arithmetic number, because the mean of its divisors is an integer number (8937348).

Almost surely, 2^51070540 is an apocalyptic number.

It is an amenable number.

51070540 is an abundant number, since it is smaller than the sum of its proper divisors (56177636).

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

51070540 is a wasteful number, since it uses less digits than its factorization.

51070540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553536 (or 2553534 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 51070540 is about 7146.3655098239. The cubic root of 51070540 is about 371.0138737386.

Adding to 51070540 its reverse (4507015), we get a palindrome (55577555).

The spelling of 51070540 in words is "fifty-one million, seventy thousand, five hundred forty".