31352014225 has 27 divisors (see below), whose sum is σ = 45232621947. Its totient is φ = 21494274480.

The previous prime is 31352014223. The next prime is 31352014229. The reversal of 31352014225 is 52241025313.

The square root of 31352014225 is 177065.

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., 11286725121 + 20065289104 = 106239^2 + 141652^2 .

It is not a de Polignac number, because 31352014225 - 2¹ = 31352014223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31352014193 and 31352014202.

It is not an unprimeable number, because it can be changed into a prime (31352014223) 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, 6194746 + ... + 6199804.

Almost surely, 2^31352014225 is an apocalyptic number.

31352014225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

31352014225 is the 177065-th square number.

31352014225 is the 88533-rd centered octagonal number.

It is an amenable number.

31352014225 is a deficient number, since it is larger than the sum of its proper divisors (13880607722).

31352014225 is an frugal number, since it uses more digits than its factorization.

31352014225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10142 (or 5071 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 31352014225 its reverse (52241025313), we get a palindrome (83593039538).

The spelling of 31352014225 in words is "thirty-one billion, three hundred fifty-two million, fourteen thousand, two hundred twenty-five".