538725172441 has 9 divisors (see below), whose sum is σ = 541673390559. Its totient is φ = 535792926336.

The previous prime is 538725172423. The next prime is 538725172457. The reversal of 538725172441 is 144271527835.

It is a happy number.

The square root of 538725172441 is 733979.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 130526851225 + 408198321216 = 361285^2 + 638904^2 .

It is not a de Polignac number, because 538725172441 - 2¹³ = 538725164249 is a prime.

It is a super-2 number, since 2×538725172441² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538725175441) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 141656046 + ... + 141659848.

Almost surely, 2^538725172441 is an apocalyptic number.

538725172441 is the 733979-th square number.

538725172441 is the 366990-th centered octagonal number.

It is an amenable number.

538725172441 is a deficient number, since it is larger than the sum of its proper divisors (2948218118).

538725172441 is an frugal number, since it uses more digits than its factorization.

538725172441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7992 (or 3996 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 49.

Multiplying 538725172441 by its sum of digits (49), we get a square (26397533449609 = 5137853²).

The spelling of 538725172441 in words is "five hundred thirty-eight billion, seven hundred twenty-five million, one hundred seventy-two thousand, four hundred forty-one".