78052605 has 16 divisors (see below), whose sum is σ = 125141760. Its totient is φ = 41542208.

The previous prime is 78052591. The next prime is 78052621. The reversal of 78052605 is 50625087.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 78052605 - 2¹⁷ = 77921533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2524 + ... + 12746.

It is an arithmetic number, because the mean of its divisors is an integer number (7821360).

Almost surely, 2^78052605 is an apocalyptic number.

It is an amenable number.

78052605 is a deficient number, since it is larger than the sum of its proper divisors (47089155).

78052605 is a wasteful number, since it uses less digits than its factorization.

78052605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10740.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 78052605 is about 8834.7385360292. The cubic root of 78052605 is about 427.3618992383.

The spelling of 78052605 in words is "seventy-eight million, fifty-two thousand, six hundred five".