53610534991 has 4 divisors (see below), whose sum is σ = 57734422312. Its totient is φ = 49486647672.

The previous prime is 53610534983. The next prime is 53610535057. The reversal of 53610534991 is 19943501635.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53610534991 - 2³ = 53610534983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53610534911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2061943641 + ... + 2061943666.

It is an arithmetic number, because the mean of its divisors is an integer number (14433605578).

Almost surely, 2^53610534991 is an apocalyptic number.

53610534991 is a deficient number, since it is larger than the sum of its proper divisors (4123887321).

53610534991 is a wasteful number, since it uses less digits than its factorization.

53610534991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123887320.

The product of its (nonzero) digits is 437400, while the sum is 46.

The spelling of 53610534991 in words is "fifty-three billion, six hundred ten million, five hundred thirty-four thousand, nine hundred ninety-one".