401530253013533 has 4 divisors (see below), whose sum is σ = 458891717729760. Its totient is φ = 344168788297308.

The previous prime is 401530253013511. The next prime is 401530253013557. The reversal of 401530253013533 is 335310352035104.

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 401530253013533 - 2¹⁰ = 401530253012509 is a prime.

It is a super-2 number, since 2×401530253013533² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401530253013133) 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, 28680732358103 + ... + 28680732358116.

It is an arithmetic number, because the mean of its divisors is an integer number (114722929432440).

Almost surely, 2^{401530253013533} is an apocalyptic number.

It is an amenable number.

401530253013533 is a deficient number, since it is larger than the sum of its proper divisors (57361464716227).

401530253013533 is an equidigital number, since it uses as much as digits as its factorization.

401530253013533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57361464716226.

The product of its (nonzero) digits is 243000, while the sum is 38.

The spelling of 401530253013533 in words is "four hundred one trillion, five hundred thirty billion, two hundred fifty-three million, thirteen thousand, five hundred thirty-three".