52785521040251 has 2 divisors, whose sum is σ = 52785521040252. Its totient is φ = 52785521040250.

The previous prime is 52785521040181. The next prime is 52785521040283. The reversal of 52785521040251 is 15204012558725.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52785521040251 is a prime.

It is a super-2 number, since 2×52785521040251² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 52785521040196 and 52785521040205.

It is not a weakly prime, because it can be changed into another prime (52785521040751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26392760520125 + 26392760520126.

It is an arithmetic number, because the mean of its divisors is an integer number (26392760520126).

Almost surely, 2^{52785521040251} is an apocalyptic number.

52785521040251 is a deficient number, since it is larger than the sum of its proper divisors (1).

52785521040251 is an equidigital number, since it uses as much as digits as its factorization.

52785521040251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120000, while the sum is 47.

Adding to 52785521040251 its reverse (15204012558725), we get a palindrome (67989533598976).

The spelling of 52785521040251 in words is "fifty-two trillion, seven hundred eighty-five billion, five hundred twenty-one million, forty thousand, two hundred fifty-one".