673212045025 has 45 divisors (see below), whose sum is σ = 905278059023. Its totient is φ = 496629213600.

The previous prime is 673212044987. The next prime is 673212045031. The reversal of 673212045025 is 520540212376.

The square root of 673212045025 is 820495.

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

673212045025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 7 ways, for example, as 660525176529 + 12686868496 = 812727^2 + 112636^2 .

It is not a de Polignac number, because 673212045025 - 2¹¹ = 673212042977 is a prime.

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, 693317790 + ... + 693318760.

Almost surely, 2^673212045025 is an apocalyptic number.

673212045025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

673212045025 is the 820495-th square number.

673212045025 is the 410248-th centered octagonal number.

It is an amenable number.

673212045025 is a deficient number, since it is larger than the sum of its proper divisors (232066013998).

673212045025 is an frugal number, since it uses more digits than its factorization.

673212045025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 673212045025 in words is "six hundred seventy-three billion, two hundred twelve million, forty-five thousand, twenty-five".