25492930 has 8 divisors (see below), whose sum is σ = 45887292. Its totient is φ = 10197168.

The previous prime is 25492919. The next prime is 25492931. The reversal of 25492930 is 3929452.

It can be written as a sum of positive squares in 2 ways, for example, as 25492401 + 529 = 5049^2 + 23^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25492931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274637 + ... + 1274656.

Almost surely, 2^25492930 is an apocalyptic number.

25492930 is a deficient number, since it is larger than the sum of its proper divisors (20394362).

25492930 is a wasteful number, since it uses less digits than its factorization.

25492930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549300.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 25492930 is about 5049.0523863394. The cubic root of 25492930 is about 294.3110610874.

The spelling of 25492930 in words is "twenty-five million, four hundred ninety-two thousand, nine hundred thirty".