1533479953 has 2 divisors, whose sum is σ = 1533479954. Its totient is φ = 1533479952.

The previous prime is 1533479921. The next prime is 1533479971. The reversal of 1533479953 is 3599743351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1023488064 + 509991889 = 31992^2 + 22583^2 .

It is a cyclic number.

It is not a de Polignac number, because 1533479953 - 2⁵ = 1533479921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1533479897 and 1533479906.

It is not a weakly prime, because it can be changed into another prime (1533479903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766739976 + 766739977.

It is an arithmetic number, because the mean of its divisors is an integer number (766739977).

Almost surely, 2^1533479953 is an apocalyptic number.

It is an amenable number.

1533479953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533479953 is an equidigital number, since it uses as much as digits as its factorization.

1533479953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1530900, while the sum is 49.

The square root of 1533479953 is about 39159.6725343816. The cubic root of 1533479953 is about 1153.1683148933.

The spelling of 1533479953 in words is "one billion, five hundred thirty-three million, four hundred seventy-nine thousand, nine hundred fifty-three".