25878801 has 12 divisors (see below), whose sum is σ = 37364208. Its totient is φ = 15925104.

The previous prime is 25878793. The next prime is 25878803. The reversal of 25878801 is 10887852.

It is not a de Polignac number, because 25878801 - 2³ = 25878793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 25878801.

It is not an unprimeable number, because it can be changed into a prime (25878803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25015 + ... + 26028.

It is an arithmetic number, because the mean of its divisors is an integer number (3113684).

Almost surely, 2^25878801 is an apocalyptic number.

It is an amenable number.

25878801 is a deficient number, since it is larger than the sum of its proper divisors (11485407).

25878801 is a wasteful number, since it uses less digits than its factorization.

25878801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51072 (or 51059 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 25878801 is about 5087.1210915409. The cubic root of 25878801 is about 295.7885672041.

The spelling of 25878801 in words is "twenty-five million, eight hundred seventy-eight thousand, eight hundred one".