670551025 has 9 divisors (see below), whose sum is σ = 831643851. Its totient is φ = 536337240.

The previous prime is 670550999. The next prime is 670551029. The reversal of 670551025 is 520155076.

The square root of 670551025 is 25895.

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., 241398369 + 429152656 = 15537^2 + 20716^2 .

It is not a de Polignac number, because 670551025 - 2⁷ = 670550897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670551029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 126886 + ... + 132064.

Almost surely, 2^670551025 is an apocalyptic number.

670551025 is the 25895-th square number.

670551025 is the 12948-th centered octagonal number.

It is an amenable number.

670551025 is a deficient number, since it is larger than the sum of its proper divisors (161092826).

670551025 is an frugal number, since it uses more digits than its factorization.

670551025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10368 (or 5184 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The cubic root of 670551025 is about 875.2738299426.

The spelling of 670551025 in words is "six hundred seventy million, five hundred fifty-one thousand, twenty-five".