25703262647155 has 4 divisors (see below), whose sum is σ = 30843915176592. Its totient is φ = 20562610117720.

The previous prime is 25703262647149. The next prime is 25703262647201. The reversal of 25703262647155 is 55174626230752.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25703262647155 - 2⁹ = 25703262646643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25703262647096 and 25703262647105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2570326264711 + ... + 2570326264720.

It is an arithmetic number, because the mean of its divisors is an integer number (7710978794148).

Almost surely, 2^{25703262647155} is an apocalyptic number.

25703262647155 is a deficient number, since it is larger than the sum of its proper divisors (5140652529437).

25703262647155 is an equidigital number, since it uses as much as digits as its factorization.

25703262647155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140652529436.

The product of its (nonzero) digits is 21168000, while the sum is 55.

The spelling of 25703262647155 in words is "twenty-five trillion, seven hundred three billion, two hundred sixty-two million, six hundred forty-seven thousand, one hundred fifty-five".