535450253643021 has 4 divisors (see below), whose sum is σ = 713933671524032. Its totient is φ = 356966835762012.

The previous prime is 535450253642957. The next prime is 535450253643047. The reversal of 535450253643021 is 120346352054535.

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 not a de Polignac number, because 535450253643021 - 2⁶ = 535450253642957 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 (535450253643821) 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, 89241708940501 + ... + 89241708940506.

It is an arithmetic number, because the mean of its divisors is an integer number (178483417881008).

Almost surely, 2^{535450253643021} is an apocalyptic number.

It is an amenable number.

535450253643021 is a deficient number, since it is larger than the sum of its proper divisors (178483417881011).

535450253643021 is a wasteful number, since it uses less digits than its factorization.

535450253643021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178483417881010.

The product of its (nonzero) digits is 6480000, while the sum is 48.

The spelling of 535450253643021 in words is "five hundred thirty-five trillion, four hundred fifty billion, two hundred fifty-three million, six hundred forty-three thousand, twenty-one".