53243542251 has 24 divisors (see below), whose sum is σ = 79465651200. Its totient is φ = 34317169200.

The previous prime is 53243542229. The next prime is 53243542267. The reversal of 53243542251 is 15224534235.

53243542251 is a `hidden beast` number, since 53 + 2 + 4 + 354 + 2 + 251 = 666.

It is not a de Polignac number, because 53243542251 - 2²⁵ = 53209987819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53243542291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195100 + ... + 380198.

It is an arithmetic number, because the mean of its divisors is an integer number (3311068800).

Almost surely, 2^53243542251 is an apocalyptic number.

53243542251 is a deficient number, since it is larger than the sum of its proper divisors (26222108949).

53243542251 is a wasteful number, since it uses less digits than its factorization.

53243542251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186167 (or 186164 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The spelling of 53243542251 in words is "fifty-three billion, two hundred forty-three million, five hundred forty-two thousand, two hundred fifty-one".