25555305552775 has 48 divisors (see below), whose sum is σ = 35296912995840. Its totient is φ = 18265202524800.

The previous prime is 25555305552769. The next prime is 25555305552793. The reversal of 25555305552775 is 57725550355552.

It is not a de Polignac number, because 25555305552775 - 2¹¹ = 25555305550727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15697272 + ... + 17248621.

It is an arithmetic number, because the mean of its divisors is an integer number (735352354080).

Almost surely, 2^{25555305552775} is an apocalyptic number.

25555305552775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25555305552775 is a deficient number, since it is larger than the sum of its proper divisors (9741607443065).

25555305552775 is a wasteful number, since it uses less digits than its factorization.

25555305552775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32946016 (or 32946011 counting only the distinct ones).

The product of its (nonzero) digits is 229687500, while the sum is 61.

The spelling of 25555305552775 in words is "twenty-five trillion, five hundred fifty-five billion, three hundred five million, five hundred fifty-two thousand, seven hundred seventy-five".