25255502555 has 8 divisors (see below), whose sum is σ = 30380704800. Its totient is φ = 20155000896.

The previous prime is 25255502543. The next prime is 25255502603. The reversal of 25255502555 is 55520555252.

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

It is a cyclic number.

It is not a de Polignac number, because 25255502555 - 2¹⁶ = 25255437019 is a prime.

It is a super-2 number, since 2×25255502555² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6172895 + ... + 6176984.

It is an arithmetic number, because the mean of its divisors is an integer number (3797588100).

Almost surely, 2^25255502555 is an apocalyptic number.

25255502555 is a deficient number, since it is larger than the sum of its proper divisors (5125202245).

25255502555 is a wasteful number, since it uses less digits than its factorization.

25255502555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12350293.

The product of its (nonzero) digits is 625000, while the sum is 41.

The spelling of 25255502555 in words is "twenty-five billion, two hundred fifty-five million, five hundred two thousand, five hundred fifty-five".