53540221431 has 8 divisors (see below), whose sum is σ = 71390429424. Its totient is φ = 35691747200.

The previous prime is 53540221403. The next prime is 53540221439. The reversal of 53540221431 is 13412204535.

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

It is a cyclic number.

It is not a de Polignac number, because 53540221431 - 2¹⁰ = 53540220407 is a prime.

It is a super-2 number, since 2×53540221431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53540221439) 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, 359586 + ... + 486191.

It is an arithmetic number, because the mean of its divisors is an integer number (8923803678).

Almost surely, 2^53540221431 is an apocalyptic number.

53540221431 is a deficient number, since it is larger than the sum of its proper divisors (17850207993).

53540221431 is a wasteful number, since it uses less digits than its factorization.

53540221431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866881.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 53540221431 its reverse (13412204535), we get a palindrome (66952425966).

The spelling of 53540221431 in words is "fifty-three billion, five hundred forty million, two hundred twenty-one thousand, four hundred thirty-one".