25408930 has 32 divisors (see below), whose sum is σ = 48489840. Its totient is φ = 9569280.

The previous prime is 25408927. The next prime is 25408963. The reversal of 25408930 is 3980452.

It can be written as a sum of positive squares in 8 ways, for example, as 638401 + 24770529 = 799^2 + 4977^2 .

It is a super-2 number, since 2×25408930² = 1291227447489800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25408892 and 25408901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10822 + ... + 12958.

Almost surely, 2^25408930 is an apocalyptic number.

25408930 is a deficient number, since it is larger than the sum of its proper divisors (23080910).

25408930 is a wasteful number, since it uses less digits than its factorization.

25408930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 25408930 is about 5040.7271300875. The cubic root of 25408930 is about 293.9874506807.

The spelling of 25408930 in words is "twenty-five million, four hundred eight thousand, nine hundred thirty".