53509876091 has 8 divisors (see below), whose sum is σ = 61156022784. Its totient is φ = 45864199080.

The previous prime is 53509876061. The next prime is 53509876097. The reversal of 53509876091 is 19067890535.

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

It is not a de Polignac number, because 53509876091 - 2¹⁸ = 53509613947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53509876097) 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, 175406 + ... + 371196.

It is an arithmetic number, because the mean of its divisors is an integer number (7644502848).

Almost surely, 2^53509876091 is an apocalyptic number.

53509876091 is a deficient number, since it is larger than the sum of its proper divisors (7646146693).

53509876091 is a wasteful number, since it uses less digits than its factorization.

53509876091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234841.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 53509876091 in words is "fifty-three billion, five hundred nine million, eight hundred seventy-six thousand, ninety-one".