1550500056613 has 2 divisors, whose sum is σ = 1550500056614. Its totient is φ = 1550500056612.

The previous prime is 1550500056583. The next prime is 1550500056661. The reversal of 1550500056613 is 3166500050551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1244489731489 + 306010325124 = 1115567^2 + 553182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1550500056613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550501056613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775250028306 + 775250028307.

It is an arithmetic number, because the mean of its divisors is an integer number (775250028307).

Almost surely, 2^{1550500056613} is an apocalyptic number.

It is an amenable number.

1550500056613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550500056613 is an equidigital number, since it uses as much as digits as its factorization.

1550500056613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 37.

The spelling of 1550500056613 in words is "one trillion, five hundred fifty billion, five hundred million, fifty-six thousand, six hundred thirteen".