25250074780550 has 48 divisors (see below), whose sum is σ = 47631998290032. Its totient is φ = 9956755929600.

The previous prime is 25250074780459. The next prime is 25250074780561. The reversal of 25250074780550 is 5508747005252.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5692130 + ... + 9104970.

It is an arithmetic number, because the mean of its divisors is an integer number (992333297709).

Almost surely, 2^{25250074780550} is an apocalyptic number.

25250074780550 is a deficient number, since it is larger than the sum of its proper divisors (22381923509482).

25250074780550 is a wasteful number, since it uses less digits than its factorization.

25250074780550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414953 (or 3414948 counting only the distinct ones).

The product of its (nonzero) digits is 3920000, while the sum is 50.

The spelling of 25250074780550 in words is "twenty-five trillion, two hundred fifty billion, seventy-four million, seven hundred eighty thousand, five hundred fifty".