78552064 has 44 divisors (see below), whose sum is σ = 160943328. Its totient is φ = 38297600.

The previous prime is 78552059. The next prime is 78552083. The reversal of 78552064 is 46025587.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41049 + ... + 42919.

Almost surely, 2^78552064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78552064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80471664).

78552064 is an abundant number, since it is smaller than the sum of its proper divisors (82391264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78552064 is a wasteful number, since it uses less digits than its factorization.

78552064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1914 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 78552064 is about 8862.9602278246. The cubic root of 78552064 is about 428.2715253802.

The spelling of 78552064 in words is "seventy-eight million, five hundred fifty-two thousand, sixty-four".