674224587247225 has 45 divisors (see below), whose sum is σ = 975329404866863. Its totient is φ = 462321068994960.

The previous prime is 674224587247163. The next prime is 674224587247339. The reversal of 674224587247225 is 522742785422476.

It is a happy number.

The square root of 674224587247225 is 25965835.

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., 242720851409001 + 431503735838224 = 15579501^2 + 20772668^2 .

It is not a de Polignac number, because 674224587247225 - 2⁷ = 674224587247097 is a prime.

It is a super-2 number, since 2×674224587247225² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 6361576584 + ... + 6361682566.

Almost surely, 2^{674224587247225} is an apocalyptic number.

674224587247225 is the 25965835-th square number.

674224587247225 is the 12982918-th centered octagonal number.

It is an amenable number.

674224587247225 is a deficient number, since it is larger than the sum of its proper divisors (301104817619638).

674224587247225 is an frugal number, since it uses more digits than its factorization.

674224587247225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212004 (or 105995 counting only the distinct ones).

The product of its digits is 842956800, while the sum is 67.

The spelling of 674224587247225 in words is "six hundred seventy-four trillion, two hundred twenty-four billion, five hundred eighty-seven million, two hundred forty-seven thousand, two hundred twenty-five".