25890048 has 108 divisors (see below), whose sum is σ = 79157988. Its totient is φ = 8110080.

The previous prime is 25890043. The next prime is 25890049. The reversal of 25890048 is 84009852.

It can be written as a sum of positive squares in 2 ways, for example, as 20358144 + 5531904 = 4512^2 + 2352^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 25889994 and 25890021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25890043) 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, 38838 + ... + 39498.

Almost surely, 2^25890048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25890048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39578994).

25890048 is an abundant number, since it is smaller than the sum of its proper divisors (53267940).

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

25890048 is a wasteful number, since it uses less digits than its factorization.

25890048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 25890048 is about 5088.2264100568. The cubic root of 25890048 is about 295.8314111802.

The spelling of 25890048 in words is "twenty-five million, eight hundred ninety thousand, forty-eight".