53764524821 has 4 divisors (see below), whose sum is σ = 61445171232. Its totient is φ = 46083878412.

The previous prime is 53764524811. The next prime is 53764524883. The reversal of 53764524821 is 12842546735.

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 53764524821 - 2⁶ = 53764524757 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 (53764524811) 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, 3840323195 + ... + 3840323208.

It is an arithmetic number, because the mean of its divisors is an integer number (15361292808).

Almost surely, 2^53764524821 is an apocalyptic number.

It is an amenable number.

53764524821 is a deficient number, since it is larger than the sum of its proper divisors (7680646411).

53764524821 is an equidigital number, since it uses as much as digits as its factorization.

53764524821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7680646410.

The product of its digits is 1612800, while the sum is 47.

The spelling of 53764524821 in words is "fifty-three billion, seven hundred sixty-four million, five hundred twenty-four thousand, eight hundred twenty-one".