67800025 has 6 divisors (see below), whose sum is σ = 84072062. Its totient is φ = 54240000.

The previous prime is 67800023. The next prime is 67800041. The reversal of 67800025 is 52000876.

It can be written as a sum of positive squares in 3 ways, for example, as 1263376 + 66536649 = 1124^2 + 8157^2 .

It is not a de Polignac number, because 67800025 - 2¹ = 67800023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67799966 and 67800002.

It is not an unprimeable number, because it can be changed into a prime (67800023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1355976 + ... + 1356025.

Almost surely, 2^67800025 is an apocalyptic number.

It is an amenable number.

67800025 is a deficient number, since it is larger than the sum of its proper divisors (16272037).

67800025 is a wasteful number, since it uses less digits than its factorization.

67800025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712011 (or 2712006 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 67800025 is about 8234.0770581772. The cubic root of 67800025 is about 407.7650050872.

The spelling of 67800025 in words is "sixty-seven million, eight hundred thousand, twenty-five".