25055007206500 has 48 divisors (see below), whose sum is σ = 54730460244096. Its totient is φ = 10020111948000.

The previous prime is 25055007206429. The next prime is 25055007206503. The reversal of 25055007206500 is 560270055052.

It is a happy number.

It is a super-2 number, since 2×25055007206500² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25055007206500.

It is not an unprimeable number, because it can be changed into a prime (25055007206503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2073186 + ... + 7376185.

It is an arithmetic number, because the mean of its divisors is an integer number (1140217921752).

Almost surely, 2^{25055007206500} is an apocalyptic number.

25055007206500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25055007206500 is an abundant number, since it is smaller than the sum of its proper divisors (29675453037596).

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

25055007206500 is a wasteful number, since it uses less digits than its factorization.

25055007206500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9454693 (or 9454681 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 37.

The spelling of 25055007206500 in words is "twenty-five trillion, fifty-five billion, seven million, two hundred six thousand, five hundred".