78105325 has 24 divisors (see below), whose sum is σ = 99636480. Its totient is φ = 60715200.

The previous prime is 78105319. The next prime is 78105341. The reversal of 78105325 is 52350187.

It is not a de Polignac number, because 78105325 - 2⁷ = 78105197 is a prime.

It is a super-2 number, since 2×78105325² = 12200883586711250, 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 23 ways as a sum of consecutive naturals, for example, 139947 + ... + 140503.

It is an arithmetic number, because the mean of its divisors is an integer number (4151520).

Almost surely, 2^78105325 is an apocalyptic number.

It is an amenable number.

78105325 is a deficient number, since it is larger than the sum of its proper divisors (21531155).

78105325 is a wasteful number, since it uses less digits than its factorization.

78105325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 78105325 is about 8837.7217086758. The cubic root of 78105325 is about 427.4580969610.

The spelling of 78105325 in words is "seventy-eight million, one hundred five thousand, three hundred twenty-five".