25000340077830 has 64 divisors (see below), whose sum is σ = 64620272747520. Its totient is φ = 6153548040576.

The previous prime is 25000340077819. The next prime is 25000340077879. The reversal of 25000340077830 is 3877004300052.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4330791 + ... + 8291949.

It is an arithmetic number, because the mean of its divisors is an integer number (1009691761680).

Almost surely, 2^{25000340077830} is an apocalyptic number.

25000340077830 is an abundant number, since it is smaller than the sum of its proper divisors (39619932669690).

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

25000340077830 is a wasteful number, since it uses less digits than its factorization.

25000340077830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977365.

The product of its (nonzero) digits is 141120, while the sum is 39.

Adding to 25000340077830 its reverse (3877004300052), we get a palindrome (28877344377882).

The spelling of 25000340077830 in words is "twenty-five trillion, three hundred forty million, seventy-seven thousand, eight hundred thirty".