53048863255581 has 12 divisors (see below), whose sum is σ = 76924291987452. Its totient is φ = 35228298295296.

The previous prime is 53048863255559. The next prime is 53048863255601. The reversal of 53048863255581 is 18555236884035.

It is a happy number.

53048863255581 is a `hidden beast` number, since 5 + 3 + 0 + 48 + 8 + 6 + 3 + 2 + 5 + 5 + 581 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 47950999211556 + 5097864044025 = 6924666^2 + 2257845^2 .

It is not a de Polignac number, because 53048863255581 - 2²⁵ = 53048829701149 is a prime.

It is a super-2 number, since 2×53048863255581² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53048863255081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11467542706 + ... + 11467547331.

It is an arithmetic number, because the mean of its divisors is an integer number (6410357665621).

Almost surely, 2^{53048863255581} is an apocalyptic number.

It is an amenable number.

53048863255581 is a deficient number, since it is larger than the sum of its proper divisors (23875428731871).

53048863255581 is a wasteful number, since it uses less digits than its factorization.

53048863255581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22935090300 (or 22935090297 counting only the distinct ones).

The product of its (nonzero) digits is 138240000, while the sum is 63.

The spelling of 53048863255581 in words is "fifty-three trillion, forty-eight billion, eight hundred sixty-three million, two hundred fifty-five thousand, five hundred eighty-one".