78260275 has 12 divisors (see below), whose sum is σ = 100174144. Its totient is φ = 60588000.

The previous prime is 78260269. The next prime is 78260309. The reversal of 78260275 is 57206287.

It is not a de Polignac number, because 78260275 - 2⁵ = 78260243 is a prime.

It is a super-2 number, since 2×78260275² = 12249341286151250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49716 + ... + 51265.

Almost surely, 2^78260275 is an apocalyptic number.

78260275 is a deficient number, since it is larger than the sum of its proper divisors (21913869).

78260275 is a wasteful number, since it uses less digits than its factorization.

78260275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101022 (or 101017 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 78260275 is about 8846.4837647508. The cubic root of 78260275 is about 427.7405825246.

The spelling of 78260275 in words is "seventy-eight million, two hundred sixty thousand, two hundred seventy-five".