25419678 has 16 divisors (see below), whose sum is σ = 51701760. Its totient is φ = 8329496.

The previous prime is 25419677. The next prime is 25419697. The reversal of 25419678 is 87691452.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25419671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35550 + ... + 36257.

It is an arithmetic number, because the mean of its divisors is an integer number (3231360).

Almost surely, 2^25419678 is an apocalyptic number.

25419678 is an abundant number, since it is smaller than the sum of its proper divisors (26282082).

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

25419678 is a wasteful number, since it uses less digits than its factorization.

25419678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71871.

The product of its digits is 120960, while the sum is 42.

The square root of 25419678 is about 5041.7931334001. The cubic root of 25419678 is about 294.0288971550.

The spelling of 25419678 in words is "twenty-five million, four hundred nineteen thousand, six hundred seventy-eight".