25263998 has 4 divisors (see below), whose sum is σ = 37896000. Its totient is φ = 12631998.

The previous prime is 25263991. The next prime is 25264003. The reversal of 25263998 is 89936252.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25263991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315998 + ... + 6316001.

It is an arithmetic number, because the mean of its divisors is an integer number (9474000).

Almost surely, 2^25263998 is an apocalyptic number.

25263998 is a deficient number, since it is larger than the sum of its proper divisors (12632002).

25263998 is a wasteful number, since it uses less digits than its factorization.

25263998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12632001.

The product of its digits is 233280, while the sum is 44.

The square root of 25263998 is about 5026.3304706316. The cubic root of 25263998 is about 293.4274184535.

The spelling of 25263998 in words is "twenty-five million, two hundred sixty-three thousand, nine hundred ninety-eight".