531710764225 has 27 divisors (see below), whose sum is σ = 675984619291. Its totient is φ = 414877097600.

The previous prime is 531710764223. The next prime is 531710764241. The reversal of 531710764225 is 522467017135.

It is a happy number.

The square root of 531710764225 is 729185.

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

It can be written as a sum of positive squares in 13 ways, for example, as 469741632129 + 61969132096 = 685377^2 + 248936^2 .

It is not a de Polignac number, because 531710764225 - 2¹ = 531710764223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531710764223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 149481147 + ... + 149484703.

Almost surely, 2^531710764225 is an apocalyptic number.

531710764225 is the 729185-th square number.

531710764225 is the 364593-rd centered octagonal number.

It is an amenable number.

531710764225 is a deficient number, since it is larger than the sum of its proper divisors (144273855066).

531710764225 is an frugal number, since it uses more digits than its factorization.

531710764225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7206 (or 3603 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 531710764225 in words is "five hundred thirty-one billion, seven hundred ten million, seven hundred sixty-four thousand, two hundred twenty-five".