25903930 has 16 divisors (see below), whose sum is σ = 50214024. Its totient is φ = 9564480.

The previous prime is 25903921. The next prime is 25903963. The reversal of 25903930 is 3930952.

It can be written as a sum of positive squares in 4 ways, for example, as 7059649 + 18844281 = 2657^2 + 4341^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25903892 and 25903901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99501 + ... + 99760.

Almost surely, 2^25903930 is an apocalyptic number.

25903930 is a deficient number, since it is larger than the sum of its proper divisors (24310094).

25903930 is a wasteful number, since it uses less digits than its factorization.

25903930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199281.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 25903930 is about 5089.5903567969. The cubic root of 25903930 is about 295.8842757387.

The spelling of 25903930 in words is "twenty-five million, nine hundred three thousand, nine hundred thirty".