25563012000 has 96 divisors (see below), whose sum is σ = 83744466624. Its totient is φ = 6816800000.

The previous prime is 25563011921. The next prime is 25563012001. The reversal of 25563012000 is 21036552.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (25563012001) 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 15 ways as a sum of consecutive naturals, for example, 1053126 + ... + 1077125.

It is an arithmetic number, because the mean of its divisors is an integer number (872338194).

Almost surely, 2^25563012000 is an apocalyptic number.

25563012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25563012000 is an abundant number, since it is smaller than the sum of its proper divisors (58181454624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25563012000 is a wasteful number, since it uses less digits than its factorization.

25563012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130279 (or 2130261 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 25563012000 its reverse (21036552), we get a palindrome (25584048552).

The spelling of 25563012000 in words is "twenty-five billion, five hundred sixty-three million, twelve thousand".