51132725317461 has 8 divisors (see below), whose sum is σ = 68187333083584. Its totient is φ = 34083300548160.

The previous prime is 51132725317451. The next prime is 51132725317493. The reversal of 51132725317461 is 16471352723115.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51132725317461 - 2⁶ = 51132725317397 is a prime.

It is a super-2 number, since 2×51132725317461² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51132725317461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51132725317451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295726185 + ... + 1295765646.

It is an arithmetic number, because the mean of its divisors is an integer number (8523416635448).

Almost surely, 2^{51132725317461} is an apocalyptic number.

It is an amenable number.

51132725317461 is a deficient number, since it is larger than the sum of its proper divisors (17054607766123).

51132725317461 is a wasteful number, since it uses less digits than its factorization.

51132725317461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591498411.

The product of its digits is 1058400, while the sum is 48.

The spelling of 51132725317461 in words is "fifty-one trillion, one hundred thirty-two billion, seven hundred twenty-five million, three hundred seventeen thousand, four hundred sixty-one".