25105480 has 16 divisors (see below), whose sum is σ = 56487420. Its totient is φ = 10042176.

The previous prime is 25105477. The next prime is 25105523. The reversal of 25105480 is 8450152.

It can be written as a sum of positive squares in 2 ways, for example, as 24820324 + 285156 = 4982^2 + 534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313779 + ... + 313858.

Almost surely, 2^25105480 is an apocalyptic number.

25105480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25105480 is an abundant number, since it is smaller than the sum of its proper divisors (31381940).

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

25105480 is a wasteful number, since it uses less digits than its factorization.

25105480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627648 (or 627644 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 25105480 is about 5010.5368973794. The cubic root of 25105480 is about 292.8124306686.

The spelling of 25105480 in words is "twenty-five million, one hundred five thousand, four hundred eighty".