613776055525 has 6 divisors (see below), whose sum is σ = 761082308882. Its totient is φ = 491020844400.

The previous prime is 613776055513. The next prime is 613776055573. The reversal of 613776055525 is 525550677316.

It can be written as a sum of positive squares in 3 ways, for example, as 108519512929 + 505256542596 = 329423^2 + 710814^2 .

It is not a de Polignac number, because 613776055525 - 2¹⁵ = 613776022757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12275521086 + ... + 12275521135.

Almost surely, 2^613776055525 is an apocalyptic number.

It is an amenable number.

613776055525 is a deficient number, since it is larger than the sum of its proper divisors (147306253357).

613776055525 is a wasteful number, since it uses less digits than its factorization.

613776055525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24551042231 (or 24551042226 counting only the distinct ones).

The product of its (nonzero) digits is 6615000, while the sum is 52.

The spelling of 613776055525 in words is "six hundred thirteen billion, seven hundred seventy-six million, fifty-five thousand, five hundred twenty-five".