7533381523 has 4 divisors (see below), whose sum is σ = 7578491760. Its totient is φ = 7488271288.

The previous prime is 7533381503. The next prime is 7533381551. The reversal of 7533381523 is 3251833357.

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 7533381523 - 2²⁵ = 7499827091 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7533381503) 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, 22554868 + ... + 22555201.

It is an arithmetic number, because the mean of its divisors is an integer number (1894622940).

Almost surely, 2^7533381523 is an apocalyptic number.

7533381523 is a deficient number, since it is larger than the sum of its proper divisors (45110237).

7533381523 is a wasteful number, since it uses less digits than its factorization.

7533381523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45110236.

The product of its digits is 226800, while the sum is 40.

The square root of 7533381523 is about 86795.0547151161. The cubic root of 7533381523 is about 1960.3336169406. Note that the first 3 decimals are identical.

The spelling of 7533381523 in words is "seven billion, five hundred thirty-three million, three hundred eighty-one thousand, five hundred twenty-three".