25908480 has 216 divisors, whose sum is σ = 97094088. Its totient is φ = 6340608.

The previous prime is 25908461. The next prime is 25908497. The reversal of 25908480 is 8480952.

It can be written as a sum of positive squares in 4 ways, for example, as 3326976 + 22581504 = 1824^2 + 4752^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149674 + ... + 149846.

Almost surely, 2^25908480 is an apocalyptic number.

25908480 is a gapful number since it is divisible by the number (20) 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 25908480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48547044).

25908480 is an abundant number, since it is smaller than the sum of its proper divisors (71185608).

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

25908480 is a wasteful number, since it uses less digits than its factorization.

25908480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 196 counting only the distinct ones).

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

The square root of 25908480 is about 5090.0373279574. The cubic root of 25908480 is about 295.9015986525.

The spelling of 25908480 in words is "twenty-five million, nine hundred eight thousand, four hundred eighty".