25055552502550 has 24 divisors (see below), whose sum is σ = 46639148934672. Its totient is φ = 10014517500000.

The previous prime is 25055552502481. The next prime is 25055552502569. The reversal of 25055552502550 is 5520525555052.

It is a super-2 number, since 2×25055552502550² (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 25055552502550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192521826 + ... + 192651925.

It is an arithmetic number, because the mean of its divisors is an integer number (1943297872278).

Almost surely, 2^{25055552502550} is an apocalyptic number.

25055552502550 is a deficient number, since it is larger than the sum of its proper divisors (21583596432122).

25055552502550 is a wasteful number, since it uses less digits than its factorization.

25055552502550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385175064 (or 385175059 counting only the distinct ones).

The product of its (nonzero) digits is 3125000, while the sum is 46.

The spelling of 25055552502550 in words is "twenty-five trillion, fifty-five billion, five hundred fifty-two million, five hundred two thousand, five hundred fifty".