53495655821 has 8 divisors (see below), whose sum is σ = 54836974080. Its totient is φ = 52162800688.

The previous prime is 53495655791. The next prime is 53495655839. The reversal of 53495655821 is 12855659435.

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

It is a cyclic number.

It is not a de Polignac number, because 53495655821 - 2¹⁴ = 53495639437 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 (53495055821) 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, 2102981 + ... + 2128266.

It is an arithmetic number, because the mean of its divisors is an integer number (6854621760).

Almost surely, 2^53495655821 is an apocalyptic number.

It is an amenable number.

53495655821 is a deficient number, since it is larger than the sum of its proper divisors (1341318259).

53495655821 is a wasteful number, since it uses less digits than its factorization.

53495655821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231563.

The product of its digits is 6480000, while the sum is 53.

The spelling of 53495655821 in words is "fifty-three billion, four hundred ninety-five million, six hundred fifty-five thousand, eight hundred twenty-one".