67899025 has 6 divisors (see below), whose sum is σ = 84194822. Its totient is φ = 54319200.

The previous prime is 67899019. The next prime is 67899031. The reversal of 67899025 is 52099876.

It is an interprime number because it is at equal distance from previous prime (67899019) and next prime (67899031).

It can be written as a sum of positive squares in 3 ways, for example, as 19998784 + 47900241 = 4472^2 + 6921^2 .

It is not a de Polignac number, because 67899025 - 2¹¹ = 67896977 is a prime.

It is a super-2 number, since 2×67899025² = 9220555191901250, which contains 22 as substring.

It is a Duffinian number.

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, 1357956 + ... + 1358005.

Almost surely, 2^67899025 is an apocalyptic number.

It is an amenable number.

67899025 is a deficient number, since it is larger than the sum of its proper divisors (16295797).

67899025 is a wasteful number, since it uses less digits than its factorization.

67899025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715971 (or 2715966 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 67899025 is about 8240.0864679929. The cubic root of 67899025 is about 407.9633781848.

The spelling of 67899025 in words is "sixty-seven million, eight hundred ninety-nine thousand, twenty-five".