53402060612261 has 2 divisors, whose sum is σ = 53402060612262. Its totient is φ = 53402060612260.

The previous prime is 53402060612239. The next prime is 53402060612287. The reversal of 53402060612261 is 16221606020435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41297575889761 + 12104484722500 = 6426319^2 + 3479150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53402060612261 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53402060612161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26701030306130 + 26701030306131.

It is an arithmetic number, because the mean of its divisors is an integer number (26701030306131).

Almost surely, 2^{53402060612261} is an apocalyptic number.

It is an amenable number.

53402060612261 is a deficient number, since it is larger than the sum of its proper divisors (1).

53402060612261 is an equidigital number, since it uses as much as digits as its factorization.

53402060612261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 53402060612261 its reverse (16221606020435), we get a palindrome (69623666632696).

The spelling of 53402060612261 in words is "fifty-three trillion, four hundred two billion, sixty million, six hundred twelve thousand, two hundred sixty-one".