78585052 has 24 divisors (see below), whose sum is σ = 169260896. Its totient is φ = 31088448.

The previous prime is 78585049. The next prime is 78585079. The reversal of 78585052 is 25058587.

It is a super-2 number, since 2×78585052² = 12351220795685408, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 78584996 and 78585014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107583 + ... + 108310.

Almost surely, 2^78585052 is an apocalyptic number.

It is an amenable number.

78585052 is an abundant number, since it is smaller than the sum of its proper divisors (90675844).

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

78585052 is a wasteful number, since it uses less digits than its factorization.

78585052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215917 (or 215915 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 78585052 is about 8864.8210359826. The cubic root of 78585052 is about 428.3314679761.

The spelling of 78585052 in words is "seventy-eight million, five hundred eighty-five thousand, fifty-two".