25557753052550 has 48 divisors (see below), whose sum is σ = 48702358630800. Its totient is φ = 9972633139200.

The previous prime is 25557753052549. The next prime is 25557753052553. The reversal of 25557753052550 is 5525035775552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25557753052553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17606321 + ... + 19002579.

It is an arithmetic number, because the mean of its divisors is an integer number (1014632471475).

Almost surely, 2^{25557753052550} is an apocalyptic number.

25557753052550 is a deficient number, since it is larger than the sum of its proper divisors (23144605578250).

25557753052550 is a wasteful number, since it uses less digits than its factorization.

25557753052550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405241 (or 1405236 counting only the distinct ones).

The product of its (nonzero) digits is 45937500, while the sum is 56.

The spelling of 25557753052550 in words is "twenty-five trillion, five hundred fifty-seven billion, seven hundred fifty-three million, fifty-two thousand, five hundred fifty".