312225525 has 18 divisors (see below), whose sum is σ = 559231010. Its totient is φ = 166520160.

The previous prime is 312225523. The next prime is 312225533. The reversal of 312225525 is 525522213.

It can be written as a sum of positive squares in 3 ways, for example, as 78960996 + 233264529 = 8886^2 + 15273^2 .

It is not a de Polignac number, because 312225525 - 2¹ = 312225523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312225523) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 693610 + ... + 694059.

Almost surely, 2^312225525 is an apocalyptic number.

It is an amenable number.

312225525 is a deficient number, since it is larger than the sum of its proper divisors (247005485).

312225525 is a wasteful number, since it uses less digits than its factorization.

312225525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387685 (or 1387677 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 312225525 is about 17669.9044988930. The cubic root of 312225525 is about 678.4056686795.

Adding to 312225525 its reverse (525522213), we get a palindrome (837747738).

The spelling of 312225525 in words is "three hundred twelve million, two hundred twenty-five thousand, five hundred twenty-five".