25505055057 has 8 divisors (see below), whose sum is σ = 34109480800. Its totient is φ = 16951999680.

The previous prime is 25505055049. The next prime is 25505055073. The reversal of 25505055057 is 75055050552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25505055057 - 2³ = 25505055049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25505055157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12841432 + ... + 12843417.

It is an arithmetic number, because the mean of its divisors is an integer number (4263685100).

Almost surely, 2^25505055057 is an apocalyptic number.

It is an amenable number.

25505055057 is a deficient number, since it is larger than the sum of its proper divisors (8604425743).

25505055057 is a wasteful number, since it uses less digits than its factorization.

25505055057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25685183.

The product of its (nonzero) digits is 218750, while the sum is 39.

The spelling of 25505055057 in words is "twenty-five billion, five hundred five million, fifty-five thousand, fifty-seven".