538132553 has 6 divisors (see below), whose sum is σ = 625990986. Its totient is φ = 461256432.

The previous prime is 538132549. The next prime is 538132561. The reversal of 538132553 is 355231835.

It can be written as a sum of positive squares in only one way, i.e., 523631689 + 14500864 = 22883^2 + 3808^2 .

It is not a de Polignac number, because 538132553 - 2² = 538132549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538132513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5491100 + ... + 5491197.

It is an arithmetic number, because the mean of its divisors is an integer number (104331831).

Almost surely, 2^538132553 is an apocalyptic number.

It is an amenable number.

538132553 is a deficient number, since it is larger than the sum of its proper divisors (87858433).

538132553 is a wasteful number, since it uses less digits than its factorization.

538132553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10982311 (or 10982304 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The square root of 538132553 is about 23197.6842163178. The cubic root of 538132553 is about 813.3854913511.

The spelling of 538132553 in words is "five hundred thirty-eight million, one hundred thirty-two thousand, five hundred fifty-three".