378878025 has 12 divisors (see below), whose sum is σ = 626411792. Its totient is φ = 202068240.

The previous prime is 378878009. The next prime is 378878029. The reversal of 378878025 is 520878873.

It is not a de Polignac number, because 378878025 - 2⁴ = 378878009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378878029) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 2525779 + ... + 2525928.

Almost surely, 2^378878025 is an apocalyptic number.

It is an amenable number.

378878025 is a deficient number, since it is larger than the sum of its proper divisors (247533767).

378878025 is a wasteful number, since it uses less digits than its factorization.

378878025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051720 (or 5051715 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The square root of 378878025 is about 19464.7893643882. The cubic root of 378878025 is about 723.6020784018.

The spelling of 378878025 in words is "three hundred seventy-eight million, eight hundred seventy-eight thousand, twenty-five".