78052125 has 16 divisors (see below), whose sum is σ = 129879360. Its totient is φ = 41627600.

The previous prime is 78052109. The next prime is 78052127. The reversal of 78052125 is 52125087.

It is not a de Polignac number, because 78052125 - 2⁴ = 78052109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78052092 and 78052101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78052127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103695 + ... + 104444.

It is an arithmetic number, because the mean of its divisors is an integer number (8117460).

Almost surely, 2^78052125 is an apocalyptic number.

78052125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78052125 is a deficient number, since it is larger than the sum of its proper divisors (51827235).

78052125 is a wasteful number, since it uses less digits than its factorization.

78052125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208157 (or 208147 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 78052125 is about 8834.7113704976. The cubic root of 78052125 is about 427.3610231876.

The spelling of 78052125 in words is "seventy-eight million, fifty-two thousand, one hundred twenty-five".