78625061 has 8 divisors (see below), whose sum is σ = 82059480. Its totient is φ = 75238912.

The previous prime is 78625039. The next prime is 78625073. The reversal of 78625061 is 16052687.

It can be written as a sum of positive squares in 4 ways, for example, as 6477025 + 72148036 = 2545^2 + 8494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78625061 - 2¹⁰ = 78624037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78625081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8720 + ... + 15273.

It is an arithmetic number, because the mean of its divisors is an integer number (10257435).

Almost surely, 2^78625061 is an apocalyptic number.

It is an amenable number.

78625061 is a deficient number, since it is larger than the sum of its proper divisors (3434419).

78625061 is a wasteful number, since it uses less digits than its factorization.

78625061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24135.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 78625061 is about 8867.0773651751. The cubic root of 78625061 is about 428.4041459465.

The spelling of 78625061 in words is "seventy-eight million, six hundred twenty-five thousand, sixty-one".