53236197549 has 12 divisors (see below), whose sum is σ = 76909015612. Its totient is φ = 35485128000.

The previous prime is 53236197517. The next prime is 53236197569. The reversal of 53236197549 is 94579163235.

53236197549 is a `hidden beast` number, since 5 + 3 + 2 + 3 + 6 + 1 + 97 + 549 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42346231524 + 10889966025 = 205782^2 + 104355^2 .

It is not a de Polignac number, because 53236197549 - 2⁵ = 53236197517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53236197495 and 53236197504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53236197569) 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, 412672 + ... + 526089.

Almost surely, 2^53236197549 is an apocalyptic number.

It is an amenable number.

53236197549 is a deficient number, since it is larger than the sum of its proper divisors (23672818063).

53236197549 is a wasteful number, since it uses less digits than its factorization.

53236197549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945068 (or 945065 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 54.

The spelling of 53236197549 in words is "fifty-three billion, two hundred thirty-six million, one hundred ninety-seven thousand, five hundred forty-nine".