53240185153 has 4 divisors (see below), whose sum is σ = 53711337348. Its totient is φ = 52769032960.

The previous prime is 53240185147. The next prime is 53240185169. The reversal of 53240185153 is 35158104235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25313764609 + 27926420544 = 159103^2 + 167112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53240185153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53240185123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235575928 + ... + 235576153.

It is an arithmetic number, because the mean of its divisors is an integer number (13427834337).

Almost surely, 2^53240185153 is an apocalyptic number.

It is an amenable number.

53240185153 is a deficient number, since it is larger than the sum of its proper divisors (471152195).

53240185153 is a wasteful number, since it uses less digits than its factorization.

53240185153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471152194.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 53240185153 its reverse (35158104235), we get a palindrome (88398289388).

The spelling of 53240185153 in words is "fifty-three billion, two hundred forty million, one hundred eighty-five thousand, one hundred fifty-three".