51853825397 has 16 divisors (see below), whose sum is σ = 56860017984. Its totient is φ = 46896528000.

The previous prime is 51853825351. The next prime is 51853825403. The reversal of 51853825397 is 79352835815.

It is a happy number.

51853825397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51853825397 - 2⁸ = 51853825141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51853825997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10202897 + ... + 10207977.

It is an arithmetic number, because the mean of its divisors is an integer number (3553751124).

Almost surely, 2^51853825397 is an apocalyptic number.

It is an amenable number.

51853825397 is a deficient number, since it is larger than the sum of its proper divisors (5006192587).

51853825397 is a wasteful number, since it uses less digits than its factorization.

51853825397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9700.

The product of its digits is 9072000, while the sum is 56.

The spelling of 51853825397 in words is "fifty-one billion, eight hundred fifty-three million, eight hundred twenty-five thousand, three hundred ninety-seven".