726588533225 has 12 divisors (see below), whose sum is σ = 925320317004. Its totient is φ = 565560803520.

The previous prime is 726588533221. The next prime is 726588533249. The reversal of 726588533225 is 522335885627.

It can be written as a sum of positive squares in 6 ways, for example, as 35635245529 + 690953287696 = 188773^2 + 831236^2 .

It is not a de Polignac number, because 726588533225 - 2² = 726588533221 is a prime.

It is a super-2 number, since 2×726588533225² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726588533221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392749634 + ... + 392751483.

It is an arithmetic number, because the mean of its divisors is an integer number (77110026417).

Almost surely, 2^726588533225 is an apocalyptic number.

It is an amenable number.

726588533225 is a deficient number, since it is larger than the sum of its proper divisors (198731783779).

726588533225 is a wasteful number, since it uses less digits than its factorization.

726588533225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785501164 (or 785501159 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 56.

The spelling of 726588533225 in words is "seven hundred twenty-six billion, five hundred eighty-eight million, five hundred thirty-three thousand, two hundred twenty-five".