72550472271523 has 4 divisors (see below), whose sum is σ = 72551326222960. Its totient is φ = 72549618320088.

The previous prime is 72550472271451. The next prime is 72550472271527. The reversal of 72550472271523 is 32517227405527.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72550472271523 - 2¹³ = 72550472263331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72550472271527) 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, 426848268 + ... + 427018201.

It is an arithmetic number, because the mean of its divisors is an integer number (18137831555740).

Almost surely, 2^{72550472271523} is an apocalyptic number.

72550472271523 is a deficient number, since it is larger than the sum of its proper divisors (853951437).

72550472271523 is an equidigital number, since it uses as much as digits as its factorization.

72550472271523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853951436.

The product of its (nonzero) digits is 8232000, while the sum is 52.

The spelling of 72550472271523 in words is "seventy-two trillion, five hundred fifty billion, four hundred seventy-two million, two hundred seventy-one thousand, five hundred twenty-three".