25505050250505 has 32 divisors (see below), whose sum is σ = 47099566649088. Its totient is φ = 11544011424000.

The previous prime is 25505050250479. The next prime is 25505050250597. The reversal of 25505050250505 is 50505205050552.

It is not a de Polignac number, because 25505050250505 - 2²¹ = 25505048153353 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1202490586 + ... + 1202511795.

It is an arithmetic number, because the mean of its divisors is an integer number (1471861457784).

Almost surely, 2^{25505050250505} is an apocalyptic number.

It is an amenable number.

25505050250505 is a deficient number, since it is larger than the sum of its proper divisors (21594516398583).

25505050250505 is a wasteful number, since it uses less digits than its factorization.

25505050250505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405002497.

The product of its (nonzero) digits is 312500, while the sum is 39.

The spelling of 25505050250505 in words is "twenty-five trillion, five hundred five billion, fifty million, two hundred fifty thousand, five hundred five".