25290048 has 112 divisors (see below), whose sum is σ = 79069184. Its totient is φ = 6981120.

The previous prime is 25290043. The next prime is 25290061. The reversal of 25290048 is 84009252.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 25289997 and 25290024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25290043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41361 + ... + 41967.

Almost surely, 2^25290048 is an apocalyptic number.

25290048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25290048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39534592).

25290048 is an abundant number, since it is smaller than the sum of its proper divisors (53779136).

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

25290048 is a wasteful number, since it uses less digits than its factorization.

25290048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 25290048 is about 5028.9211566697. The cubic root of 25290048 is about 293.5282359430.

The spelling of 25290048 in words is "twenty-five million, two hundred ninety thousand, forty-eight".