25775480 has 32 divisors (see below), whose sum is σ = 58307040. Its totient is φ = 10254720.

The previous prime is 25775473. The next prime is 25775483. The reversal of 25775480 is 8457752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25775483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6245 + ... + 9515.

It is an arithmetic number, because the mean of its divisors is an integer number (1822095).

Almost surely, 2^25775480 is an apocalyptic number.

25775480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25775480 is an abundant number, since it is smaller than the sum of its proper divisors (32531560).

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

25775480 is a wasteful number, since it uses less digits than its factorization.

25775480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479 (or 3475 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 25775480 is about 5076.9557807804. The cubic root of 25775480 is about 295.3943973095.

The spelling of 25775480 in words is "twenty-five million, seven hundred seventy-five thousand, four hundred eighty".