25000229798 has 4 divisors (see below), whose sum is σ = 37500344700. Its totient is φ = 12500114898.

The previous prime is 25000229789. The next prime is 25000229843. The reversal of 25000229798 is 89792200052.

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

It is a super-2 number, since 2×25000229798² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250057448 + ... + 6250057451.

It is an arithmetic number, because the mean of its divisors is an integer number (9375086175).

Almost surely, 2^25000229798 is an apocalyptic number.

25000229798 is a deficient number, since it is larger than the sum of its proper divisors (12500114902).

25000229798 is a wasteful number, since it uses less digits than its factorization.

25000229798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12500114901.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 25000229798 in words is "twenty-five billion, two hundred twenty-nine thousand, seven hundred ninety-eight".