53701648591 has 4 divisors (see below), whose sum is σ = 54233348184. Its totient is φ = 53169949000.

The previous prime is 53701648499. The next prime is 53701648603. The reversal of 53701648591 is 19584610735.

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 53701648591 - 2³⁵ = 19341910223 is a prime.

It is a super-2 number, since 2×53701648591² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53701648691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265849645 + ... + 265849846.

It is an arithmetic number, because the mean of its divisors is an integer number (13558337046).

Almost surely, 2^53701648591 is an apocalyptic number.

53701648591 is a deficient number, since it is larger than the sum of its proper divisors (531699593).

53701648591 is a wasteful number, since it uses less digits than its factorization.

53701648591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531699592.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 53701648591 in words is "fifty-three billion, seven hundred one million, six hundred forty-eight thousand, five hundred ninety-one".