538725623 has 4 divisors (see below), whose sum is σ = 541546368. Its totient is φ = 535904880.

The previous prime is 538725611. The next prime is 538725641. The reversal of 538725623 is 326527835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326527835 = 5 ⋅65305567.

It is a cyclic number.

It is not a de Polignac number, because 538725623 - 2⁶ = 538725559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538725643) 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, 1410086 + ... + 1410467.

It is an arithmetic number, because the mean of its divisors is an integer number (135386592).

Almost surely, 2^538725623 is an apocalyptic number.

538725623 is a deficient number, since it is larger than the sum of its proper divisors (2820745).

538725623 is a wasteful number, since it uses less digits than its factorization.

538725623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820744.

The product of its digits is 302400, while the sum is 41.

The square root of 538725623 is about 23210.4636532750. The cubic root of 538725623 is about 813.6841893981.

It can be divided in two parts, 53872 and 5623, that added together give a palindrome (59495).

The spelling of 538725623 in words is "five hundred thirty-eight million, seven hundred twenty-five thousand, six hundred twenty-three".