538704553 has 4 divisors (see below), whose sum is σ = 550166400. Its totient is φ = 527242708.

The previous prime is 538704541. The next prime is 538704557. The reversal of 538704553 is 355407835.

538704553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 355407835 = 5 ⋅71081567.

It is a cyclic number.

It is not a de Polignac number, because 538704553 - 2⁵ = 538704521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538704557) 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, 5730853 + ... + 5730946.

It is an arithmetic number, because the mean of its divisors is an integer number (137541600).

Almost surely, 2^538704553 is an apocalyptic number.

It is an amenable number.

538704553 is a deficient number, since it is larger than the sum of its proper divisors (11461847).

538704553 is a wasteful number, since it uses less digits than its factorization.

538704553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11461846.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 538704553 is about 23210.0097587226. The cubic root of 538704553 is about 813.6735813083.

The spelling of 538704553 in words is "five hundred thirty-eight million, seven hundred four thousand, five hundred fifty-three".