378522225 has 36 divisors (see below), whose sum is σ = 680908800. Its totient is φ = 201005280.

The previous prime is 378522203. The next prime is 378522233. The reversal of 378522225 is 522225873.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-378522225 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 378522225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 50256 + ... + 57294.

Almost surely, 2^378522225 is an apocalyptic number.

It is an amenable number.

378522225 is a deficient number, since it is larger than the sum of its proper divisors (302386575).

378522225 is a wasteful number, since it uses less digits than its factorization.

378522225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7294 (or 7286 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 378522225 is about 19455.6476376398. The cubic root of 378522225 is about 723.3754986616.

The spelling of 378522225 in words is "three hundred seventy-eight million, five hundred twenty-two thousand, two hundred twenty-five".