2154504340533 has 4 divisors (see below), whose sum is σ = 2872672454048. Its totient is φ = 1436336227020.

The previous prime is 2154504340511. The next prime is 2154504340561. The reversal of 2154504340533 is 3350434054512.

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 2154504340533 - 2²⁶ = 2154437231669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154504340491 and 2154504340500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154504340133) 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, 359084056753 + ... + 359084056758.

It is an arithmetic number, because the mean of its divisors is an integer number (718168113512).

Almost surely, 2^{2154504340533} is an apocalyptic number.

It is an amenable number.

2154504340533 is a deficient number, since it is larger than the sum of its proper divisors (718168113515).

2154504340533 is an equidigital number, since it uses as much as digits as its factorization.

2154504340533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718168113514.

The product of its (nonzero) digits is 432000, while the sum is 39.

The spelling of 2154504340533 in words is "two trillion, one hundred fifty-four billion, five hundred four million, three hundred forty thousand, five hundred thirty-three".