78562225 has 12 divisors (see below), whose sum is σ = 111334144. Its totient is φ = 53871120.

The previous prime is 78562223. The next prime is 78562243. The reversal of 78562225 is 52226587.

It is not a de Polignac number, because 78562225 - 2¹ = 78562223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78562223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224289 + ... + 224638.

Almost surely, 2^78562225 is an apocalyptic number.

It is an amenable number.

78562225 is a deficient number, since it is larger than the sum of its proper divisors (32771919).

78562225 is a wasteful number, since it uses less digits than its factorization.

78562225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448944 (or 448939 counting only the distinct ones).

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

The square root of 78562225 is about 8863.5334376308. The cubic root of 78562225 is about 428.2899907526.

It can be divided in two parts, 78562 and 225, that added together give a palindrome (78787).

The spelling of 78562225 in words is "seventy-eight million, five hundred sixty-two thousand, two hundred twenty-five".