25990030 has 32 divisors (see below), whose sum is σ = 51256800. Its totient is φ = 9409920.

The previous prime is 25990009. The next prime is 25990033. The reversal of 25990030 is 3009952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25990033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38052 + ... + 38728.

It is an arithmetic number, because the mean of its divisors is an integer number (1601775).

Almost surely, 2^25990030 is an apocalyptic number.

25990030 is a deficient number, since it is larger than the sum of its proper divisors (25266770).

25990030 is a wasteful number, since it uses less digits than its factorization.

25990030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 25990030 is about 5098.0417809194. The cubic root of 25990030 is about 296.2117352229.

Adding to 25990030 its reverse (3009952), we get a palindrome (28999982).

The spelling of 25990030 in words is "twenty-five million, nine hundred ninety thousand, thirty".