25738878 has 40 divisors (see below), whose sum is σ = 56818440. Its totient is φ = 7773040.

The previous prime is 25738877. The next prime is 25738903. The reversal of 25738878 is 87883752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25738873) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 87700 + ... + 87992.

It is an arithmetic number, because the mean of its divisors is an integer number (1420461).

Almost surely, 2^25738878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25738878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28409220).

25738878 is an abundant number, since it is smaller than the sum of its proper divisors (31079562).

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

25738878 is an equidigital number, since it uses as much as digits as its factorization.

25738878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 309 counting only the distinct ones).

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

The square root of 25738878 is about 5073.3497809633. The cubic root of 25738878 is about 295.2545079317.

The spelling of 25738878 in words is "twenty-five million, seven hundred thirty-eight thousand, eight hundred seventy-eight".