51070060261 has 16 divisors (see below), whose sum is σ = 56976710400. Its totient is φ = 45385704000.

The previous prime is 51070060241. The next prime is 51070060277. The reversal of 51070060261 is 16206007015.

It is a cyclic number.

It is not a de Polignac number, because 51070060261 - 2²¹ = 51067963109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51070060201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203166 + ... + 378703.

It is an arithmetic number, because the mean of its divisors is an integer number (3561044400).

Almost surely, 2^51070060261 is an apocalyptic number.

It is an amenable number.

51070060261 is a deficient number, since it is larger than the sum of its proper divisors (5906650139).

51070060261 is a wasteful number, since it uses less digits than its factorization.

51070060261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582060.

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 51070060261 its reverse (16206007015), we get a palindrome (67276067276).

The spelling of 51070060261 in words is "fifty-one billion, seventy million, sixty thousand, two hundred sixty-one".