78955252 has 6 divisors (see below), whose sum is σ = 138171698. Its totient is φ = 39477624.

The previous prime is 78955243. The next prime is 78955369. The reversal of 78955252 is 25255987.

It can be written as a sum of positive squares in only one way, i.e., 65383396 + 13571856 = 8086^2 + 3684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 78955199 and 78955208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9869403 + ... + 9869410.

Almost surely, 2^78955252 is an apocalyptic number.

It is an amenable number.

78955252 is a deficient number, since it is larger than the sum of its proper divisors (59216446).

78955252 is a wasteful number, since it uses less digits than its factorization.

78955252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19738817 (or 19738815 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The square root of 78955252 is about 8885.6767890803. The cubic root of 78955252 is about 429.0030119889.

The spelling of 78955252 in words is "seventy-eight million, nine hundred fifty-five thousand, two hundred fifty-two".