78652252 has 18 divisors (see below), whose sum is σ = 160113912. Its totient is φ = 33708024.

The previous prime is 78652247. The next prime is 78652253. The reversal of 78652252 is 25225687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78652253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200448 + ... + 200839.

Almost surely, 2^78652252 is an apocalyptic number.

It is an amenable number.

78652252 is an abundant number, since it is smaller than the sum of its proper divisors (81461660).

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

78652252 is a wasteful number, since it uses less digits than its factorization.

78652252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401305 (or 401296 counting only the distinct ones).

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

The square root of 78652252 is about 8868.6104886842. The cubic root of 78652252 is about 428.4535254294.

It can be divided in two parts, 78652 and 252, that multiplied together give a square (19820304 = 4452²).

The spelling of 78652252 in words is "seventy-eight million, six hundred fifty-two thousand, two hundred fifty-two".