67705025 has 6 divisors (see below), whose sum is σ = 83954262. Its totient is φ = 54164000.

The previous prime is 67705013. The next prime is 67705039. The reversal of 67705025 is 52050776.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5041 + 67699984 = 71^2 + 8228^2 .

It is not a de Polignac number, because 67705025 - 2¹² = 67700929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67704982 and 67705000.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1354076 + ... + 1354125.

It is an arithmetic number, because the mean of its divisors is an integer number (13992377).

Almost surely, 2^67705025 is an apocalyptic number.

It is an amenable number.

67705025 is a deficient number, since it is larger than the sum of its proper divisors (16249237).

67705025 is a wasteful number, since it uses less digits than its factorization.

67705025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708211 (or 2708206 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 67705025 is about 8228.3063263347. The cubic root of 67705025 is about 407.5744654210.

The spelling of 67705025 in words is "sixty-seven million, seven hundred five thousand, twenty-five".