53523051845 has 8 divisors (see below), whose sum is σ = 64949321880. Its totient is φ = 42337335040.

The previous prime is 53523051823. The next prime is 53523051863. The reversal of 53523051845 is 54815032535.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9624002404 + 43899049441 = 98102^2 + 209521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53523051845 - 2³⁰ = 52449310021 is a prime.

It is a super-4 number, since 4×53523051845⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60137816 + ... + 60138705.

It is an arithmetic number, because the mean of its divisors is an integer number (8118665235).

Almost surely, 2^53523051845 is an apocalyptic number.

It is an amenable number.

53523051845 is a deficient number, since it is larger than the sum of its proper divisors (11426270035).

53523051845 is a wasteful number, since it uses less digits than its factorization.

53523051845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120276615.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 53523051845 in words is "fifty-three billion, five hundred twenty-three million, fifty-one thousand, eight hundred forty-five".