2505556632455 has 8 divisors (see below), whose sum is σ = 3011109126912. Its totient is φ = 2001484527328.

The previous prime is 2505556632409. The next prime is 2505556632497. The reversal of 2505556632455 is 5542366555052.

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 2505556632455 - 2²⁰ = 2505555583879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2505556632397 and 2505556632406.

It is a congruent number.

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, 370093607 + ... + 370100376.

It is an arithmetic number, because the mean of its divisors is an integer number (376388640864).

Almost surely, 2^{2505556632455} is an apocalyptic number.

2505556632455 is a deficient number, since it is larger than the sum of its proper divisors (505552494457).

2505556632455 is an equidigital number, since it uses as much as digits as its factorization.

2505556632455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740194665.

The product of its (nonzero) digits is 27000000, while the sum is 53.

The spelling of 2505556632455 in words is "two trillion, five hundred five billion, five hundred fifty-six million, six hundred thirty-two thousand, four hundred fifty-five".