51875582461 has 8 divisors (see below), whose sum is σ = 54135262080. Its totient is φ = 49616254512.

The previous prime is 51875582419. The next prime is 51875582471. The reversal of 51875582461 is 16428557815.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51875582461 - 2²³ = 51867193853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51875582399 and 51875582408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51875582471) 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, 239520 + ... + 401398.

It is an arithmetic number, because the mean of its divisors is an integer number (6766907760).

Almost surely, 2^51875582461 is an apocalyptic number.

It is an amenable number.

51875582461 is a deficient number, since it is larger than the sum of its proper divisors (2259679619).

51875582461 is a wasteful number, since it uses less digits than its factorization.

51875582461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175835.

The product of its digits is 2688000, while the sum is 52.

The spelling of 51875582461 in words is "fifty-one billion, eight hundred seventy-five million, five hundred eighty-two thousand, four hundred sixty-one".