53718560461 has 2 divisors, whose sum is σ = 53718560462. Its totient is φ = 53718560460.

The previous prime is 53718560359. The next prime is 53718560477. The reversal of 53718560461 is 16406581735.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40841984836 + 12876575625 = 202094^2 + 113475^2 .

It is a cyclic number.

It is not a de Polignac number, because 53718560461 - 2¹³ = 53718552269 is a prime.

It is a super-2 number, since 2×53718560461² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53718560261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26859280230 + 26859280231.

It is an arithmetic number, because the mean of its divisors is an integer number (26859280231).

Almost surely, 2^53718560461 is an apocalyptic number.

It is an amenable number.

53718560461 is a deficient number, since it is larger than the sum of its proper divisors (1).

53718560461 is an equidigital number, since it uses as much as digits as its factorization.

53718560461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 53718560461 in words is "fifty-three billion, seven hundred eighteen million, five hundred sixty thousand, four hundred sixty-one".