6450507846225 has 27 divisors (see below), whose sum is σ = 11553644511643. Its totient is φ = 3440250533040.

The previous prime is 6450507846191. The next prime is 6450507846229. The reversal of 6450507846225 is 5226487050546.

The square root of 6450507846225 is 2539785.

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

6450507846225 is a `hidden beast` number, since 6 + 4 + 5 + 0 + 5 + 0 + 7 + 8 + 4 + 622 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2322182824641 + 4128325021584 = 1523871^2 + 2031828^2 .

It is not a de Polignac number, because 6450507846225 - 2²¹ = 6450505749073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6450507846229) 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, 38012116 + ... + 38181434.

Almost surely, 2^{6450507846225} is an apocalyptic number.

6450507846225 is the 2539785-th square number.

6450507846225 is the 1269893-rd centered octagonal number.

It is an amenable number.

6450507846225 is a deficient number, since it is larger than the sum of its proper divisors (5103136665418).

6450507846225 is an frugal number, since it uses more digits than its factorization.

6450507846225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338654 (or 169327 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 54.

The spelling of 6450507846225 in words is "six trillion, four hundred fifty billion, five hundred seven million, eight hundred forty-six thousand, two hundred twenty-five".