65557091753 has 4 divisors (see below), whose sum is σ = 65558198160. Its totient is φ = 65555985348.

The previous prime is 65557091741. The next prime is 65557091837. The reversal of 65557091753 is 35719075556.

65557091753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65557091753 - 2²⁶ = 65489982889 is a prime.

It is a super-2 number, since 2×65557091753² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65557091695 and 65557091704.

It is not an unprimeable number, because it can be changed into a prime (65557091713) 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, 458975 + ... + 584612.

It is an arithmetic number, because the mean of its divisors is an integer number (16389549540).

Almost surely, 2^65557091753 is an apocalyptic number.

It is an amenable number.

65557091753 is a deficient number, since it is larger than the sum of its proper divisors (1106407).

65557091753 is a wasteful number, since it uses less digits than its factorization.

65557091753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106406.

The product of its (nonzero) digits is 4961250, while the sum is 53.

The spelling of 65557091753 in words is "sixty-five billion, five hundred fifty-seven million, ninety-one thousand, seven hundred fifty-three".