875864025 has 27 divisors (see below), whose sum is σ = 1569565309. Its totient is φ = 466890720.

The previous prime is 875863991. The next prime is 875864029. The reversal of 875864025 is 520468578.

The square root of 875864025 is 29595.

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

875864025 is a `hidden beast` number, since 8 + 7 + 586 + 40 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 162333081 + 713530944 = 12741^2 + 26712^2 .

It is a de Polignac number, because none of the positive numbers 2^k-875864025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (875864029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 442939 + ... + 444911.

Almost surely, 2^875864025 is an apocalyptic number.

875864025 is the 29595-th square number.

875864025 is the 14798-th centered octagonal number.

It is an amenable number.

875864025 is a deficient number, since it is larger than the sum of its proper divisors (693701284).

875864025 is an equidigital number, since it uses as much as digits as its factorization.

875864025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The cubic root of 875864025 is about 956.7803107450.

It can be divided in two parts, 875 and 864025, that added together give a square (864900 = 930²).

The spelling of 875864025 in words is "eight hundred seventy-five million, eight hundred sixty-four thousand, twenty-five".