53423535021 has 8 divisors (see below), whose sum is σ = 71965724544. Its totient is φ = 35248517760.

The previous prime is 53423535007. The next prime is 53423535083. The reversal of 53423535021 is 12053532435.

53423535021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53423535021 - 2¹³ = 53423526829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53423515021) 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, 91792725 + ... + 91793306.

It is an arithmetic number, because the mean of its divisors is an integer number (8995715568).

Almost surely, 2^53423535021 is an apocalyptic number.

It is an amenable number.

53423535021 is a deficient number, since it is larger than the sum of its proper divisors (18542189523).

53423535021 is a wasteful number, since it uses less digits than its factorization.

53423535021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183586131.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 53423535021 in words is "fifty-three billion, four hundred twenty-three million, five hundred thirty-five thousand, twenty-one".