53140505921 has 8 divisors (see below), whose sum is σ = 56268463104. Its totient is φ = 50012776000.

The previous prime is 53140505909. The next prime is 53140505947. The reversal of 53140505921 is 12950504135.

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

It is not a de Polignac number, because 53140505921 - 2¹⁰ = 53140504897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53140505221) by changing a digit.

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, 761336 + ... + 828198.

It is an arithmetic number, because the mean of its divisors is an integer number (7033557888).

Almost surely, 2^53140505921 is an apocalyptic number.

It is an amenable number.

53140505921 is a deficient number, since it is larger than the sum of its proper divisors (3127957183).

53140505921 is a wasteful number, since it uses less digits than its factorization.

53140505921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113631.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 53140505921 in words is "fifty-three billion, one hundred forty million, five hundred five thousand, nine hundred twenty-one".