25243995 has 32 divisors (see below), whose sum is σ = 48172032. Its totient is φ = 11037312.

The previous prime is 25243993. The next prime is 25244003. The reversal of 25243995 is 59934252.

It is not a de Polignac number, because 25243995 - 2¹ = 25243993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25243993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2812 + ... + 7641.

It is an arithmetic number, because the mean of its divisors is an integer number (1505376).

Almost surely, 2^25243995 is an apocalyptic number.

25243995 is a deficient number, since it is larger than the sum of its proper divisors (22928037).

25243995 is a wasteful number, since it uses less digits than its factorization.

25243995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10491.

The product of its digits is 97200, while the sum is 39.

The square root of 25243995 is about 5024.3402551977. The cubic root of 25243995 is about 293.3499567312.

The spelling of 25243995 in words is "twenty-five million, two hundred forty-three thousand, nine hundred ninety-five".