53273773421 has 4 divisors (see below), whose sum is σ = 58116843744. Its totient is φ = 48430703100.

The previous prime is 53273773411. The next prime is 53273773429. The reversal of 53273773421 is 12437737235.

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 53273773421 - 2²² = 53269579117 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 (53273773429) 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, 2421535145 + ... + 2421535166.

It is an arithmetic number, because the mean of its divisors is an integer number (14529210936).

Almost surely, 2^53273773421 is an apocalyptic number.

It is an amenable number.

53273773421 is a deficient number, since it is larger than the sum of its proper divisors (4843070323).

53273773421 is a wasteful number, since it uses less digits than its factorization.

53273773421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843070322.

The product of its digits is 740880, while the sum is 44.

The spelling of 53273773421 in words is "fifty-three billion, two hundred seventy-three million, seven hundred seventy-three thousand, four hundred twenty-one".