25422378 has 32 divisors (see below), whose sum is σ = 55157760. Its totient is φ = 7779840.

The previous prime is 25422373. The next prime is 25422379. The reversal of 25422378 is 87322452.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25422373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^25422378 is an apocalyptic number.

25422378 is an abundant number, since it is smaller than the sum of its proper divisors (29735382).

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

25422378 is a wasteful number, since it uses less digits than its factorization.

25422378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6142.

The product of its digits is 26880, while the sum is 33.

The square root of 25422378 is about 5042.0608881686. The cubic root of 25422378 is about 294.0393070681.

The spelling of 25422378 in words is "twenty-five million, four hundred twenty-two thousand, three hundred seventy-eight".