1255610464613 has 4 divisors (see below), whose sum is σ = 1310202223968. Its totient is φ = 1201018705260.

The previous prime is 1255610464553. The next prime is 1255610464651. The reversal of 1255610464613 is 3164640165521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1255610464613 - 2⁸ = 1255610464357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255610424613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27295879643 + ... + 27295879688.

It is an arithmetic number, because the mean of its divisors is an integer number (327550555992).

Almost surely, 2^{1255610464613} is an apocalyptic number.

It is an amenable number.

1255610464613 is a deficient number, since it is larger than the sum of its proper divisors (54591759355).

1255610464613 is an equidigital number, since it uses as much as digits as its factorization.

1255610464613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54591759354.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 1255610464613 in words is "one trillion, two hundred fifty-five billion, six hundred ten million, four hundred sixty-four thousand, six hundred thirteen".