25000824542 has 8 divisors (see below), whose sum is σ = 38794383000. Its totient is φ = 12069363544.

The previous prime is 25000824521. The next prime is 25000824547. The reversal of 25000824542 is 24542800052.

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

It is a junction number, because it is equal to n+sod(n) for n = 25000824499 and 25000824508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000824547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215524292 + ... + 215524407.

It is an arithmetic number, because the mean of its divisors is an integer number (4849297875).

Almost surely, 2^25000824542 is an apocalyptic number.

25000824542 is a deficient number, since it is larger than the sum of its proper divisors (13793558458).

25000824542 is a wasteful number, since it uses less digits than its factorization.

25000824542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431048730.

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 25000824542 in words is "twenty-five billion, eight hundred twenty-four thousand, five hundred forty-two".