25255305005555 has 16 divisors (see below), whose sum is σ = 30737199009024. Its totient is φ = 19917095758560.

The previous prime is 25255305005527. The next prime is 25255305005561. The reversal of 25255305005555 is 55550050355252.

It is not a de Polignac number, because 25255305005555 - 2³⁸ = 24980427098611 is a prime.

It is a super-2 number, since 2×25255305005555² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1864169 + ... + 7347498.

It is an arithmetic number, because the mean of its divisors is an integer number (1921074938064).

Almost surely, 2^{25255305005555} is an apocalyptic number.

25255305005555 is a deficient number, since it is larger than the sum of its proper divisors (5481894003469).

25255305005555 is an equidigital number, since it uses as much as digits as its factorization.

25255305005555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9219466.

The product of its (nonzero) digits is 4687500, while the sum is 47.

The spelling of 25255305005555 in words is "twenty-five trillion, two hundred fifty-five billion, three hundred five million, five thousand, five hundred fifty-five".