78053312 has 28 divisors (see below), whose sum is σ = 157816296. Its totient is φ = 38288640.

The previous prime is 78053303. The next prime is 78053317. The reversal of 78053312 is 21335087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78053317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8114 + ... + 14897.

Almost surely, 2^78053312 is an apocalyptic number.

It is an amenable number.

78053312 is an abundant number, since it is smaller than the sum of its proper divisors (79762984).

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

78053312 is a wasteful number, since it uses less digits than its factorization.

78053312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23076 (or 23066 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 78053312 is about 8834.7785484414. The cubic root of 78053312 is about 427.3631895816.

Adding to 78053312 its reverse (21335087), we get a palindrome (99388399).

The spelling of 78053312 in words is "seventy-eight million, fifty-three thousand, three hundred twelve".