2065406125 has 8 divisors (see below), whose sum is σ = 2577627000. Its totient is φ = 1652324800.

The previous prime is 2065406111. The next prime is 2065406171. The reversal of 2065406125 is 5216045602.

It can be written as a sum of positive squares in 4 ways, for example, as 3247204 + 2062158921 = 1802^2 + 45411^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2065406125 is a prime.

It is a super-2 number, since 2×2065406125² = 8531804922375031250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8261500 + ... + 8261749.

It is an arithmetic number, because the mean of its divisors is an integer number (322203375).

Almost surely, 2^2065406125 is an apocalyptic number.

2065406125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2065406125 is a deficient number, since it is larger than the sum of its proper divisors (512220875).

2065406125 is an equidigital number, since it uses as much as digits as its factorization.

2065406125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16523264 (or 16523254 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 2065406125 is about 45446.7394319989. The cubic root of 2065406125 is about 1273.5084184851.

The spelling of 2065406125 in words is "two billion, sixty-five million, four hundred six thousand, one hundred twenty-five".