55651001613 has 4 divisors (see below), whose sum is σ = 74201335488. Its totient is φ = 37100667740.

The previous prime is 55651001573. The next prime is 55651001671. The reversal of 55651001613 is 31610015655.

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 55651001613 - 2¹² = 55650997517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55651001513) 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, 9275166933 + ... + 9275166938.

It is an arithmetic number, because the mean of its divisors is an integer number (18550333872).

Almost surely, 2^55651001613 is an apocalyptic number.

It is an amenable number.

55651001613 is a deficient number, since it is larger than the sum of its proper divisors (18550333875).

55651001613 is a wasteful number, since it uses less digits than its factorization.

55651001613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18550333874.

The product of its (nonzero) digits is 13500, while the sum is 33.

The spelling of 55651001613 in words is "fifty-five billion, six hundred fifty-one million, one thousand, six hundred thirteen".