25437378 has 32 divisors (see below), whose sum is σ = 52153920. Its totient is φ = 8268480.

The previous prime is 25437359. The next prime is 25437397. The reversal of 25437378 is 87373452.

It is an interprime number because it is at equal distance from previous prime (25437359) and next prime (25437397).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63876 + ... + 64272.

It is an arithmetic number, because the mean of its divisors is an integer number (1629810).

Almost surely, 2^25437378 is an apocalyptic number.

25437378 is an abundant number, since it is smaller than the sum of its proper divisors (26716542).

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

25437378 is a wasteful number, since it uses less digits than its factorization.

25437378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642.

The product of its digits is 141120, while the sum is 39.

The square root of 25437378 is about 5043.5481558125. The cubic root of 25437378 is about 294.0971265009.

The spelling of 25437378 in words is "twenty-five million, four hundred thirty-seven thousand, three hundred seventy-eight".