53156518047349 has 2 divisors, whose sum is σ = 53156518047350. Its totient is φ = 53156518047348.

The previous prime is 53156518047341. The next prime is 53156518047377. The reversal of 53156518047349 is 94374081565135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52601396193124 + 555121854225 = 7252682^2 + 745065^2 .

It is a cyclic number.

It is not a de Polignac number, because 53156518047349 - 2³ = 53156518047341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53156518047341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26578259023674 + 26578259023675.

It is an arithmetic number, because the mean of its divisors is an integer number (26578259023675).

Almost surely, 2^{53156518047349} is an apocalyptic number.

It is an amenable number.

53156518047349 is a deficient number, since it is larger than the sum of its proper divisors (1).

53156518047349 is an equidigital number, since it uses as much as digits as its factorization.

53156518047349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432000, while the sum is 61.

The spelling of 53156518047349 in words is "fifty-three trillion, one hundred fifty-six billion, five hundred eighteen million, forty-seven thousand, three hundred forty-nine".