667332025 has 12 divisors (see below), whose sum is σ = 876168252. Its totient is φ = 502461440.

The previous prime is 667332023. The next prime is 667332049. The reversal of 667332025 is 520233766.

It can be written as a sum of positive squares in 6 ways, for example, as 69089344 + 598242681 = 8312^2 + 24459^2 .

It is not a de Polignac number, because 667332025 - 2¹ = 667332023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667332023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 784672 + ... + 785521.

It is an arithmetic number, because the mean of its divisors is an integer number (73014021).

Almost surely, 2^667332025 is an apocalyptic number.

It is an amenable number.

667332025 is a deficient number, since it is larger than the sum of its proper divisors (208836227).

667332025 is a wasteful number, since it uses less digits than its factorization.

667332025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570220 (or 1570215 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 667332025 is about 25832.7703702100. The cubic root of 667332025 is about 873.8709901270.

The spelling of 667332025 in words is "six hundred sixty-seven million, three hundred thirty-two thousand, twenty-five".