53440525521231 has 8 divisors (see below), whose sum is σ = 71406612261504. Its totient is φ = 35550727897560.

The previous prime is 53440525521223. The next prime is 53440525521239. The reversal of 53440525521231 is 13212552504435.

It is an interprime number because it is at equal distance from previous prime (53440525521223) and next prime (53440525521239).

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

It is not a de Polignac number, because 53440525521231 - 2³ = 53440525521223 is a prime.

It is a super-2 number, since 2×53440525521231² (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 (53440525521239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19072277515 + ... + 19072280316.

It is an arithmetic number, because the mean of its divisors is an integer number (8925826532688).

Almost surely, 2^{53440525521231} is an apocalyptic number.

53440525521231 is a deficient number, since it is larger than the sum of its proper divisors (17966086740273).

53440525521231 is a wasteful number, since it uses less digits than its factorization.

53440525521231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38144558301.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 53440525521231 in words is "fifty-three trillion, four hundred forty billion, five hundred twenty-five million, five hundred twenty-one thousand, two hundred thirty-one".