538575231 has 4 divisors (see below), whose sum is σ = 718100312. Its totient is φ = 359050152.

The previous prime is 538575229. The next prime is 538575353. The reversal of 538575231 is 132575835.

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

It is not a de Polignac number, because 538575231 - 2¹ = 538575229 is a prime.

It is a super-2 number, since 2×538575231² = 580126558893406722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 538575231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538575931) 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, 89762536 + ... + 89762541.

It is an arithmetic number, because the mean of its divisors is an integer number (179525078).

Almost surely, 2^538575231 is an apocalyptic number.

538575231 is a deficient number, since it is larger than the sum of its proper divisors (179525081).

538575231 is a wasteful number, since it uses less digits than its factorization.

538575231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179525080.

The product of its digits is 126000, while the sum is 39.

The square root of 538575231 is about 23207.2236814316. The cubic root of 538575231 is about 813.6084656430.

The spelling of 538575231 in words is "five hundred thirty-eight million, five hundred seventy-five thousand, two hundred thirty-one".