526019049557 has 12 divisors (see below), whose sum is σ = 550408586700. Its totient is φ = 502668479808.

The previous prime is 526019049541. The next prime is 526019049587. The reversal of 526019049557 is 755940910625.

It can be written as a sum of positive squares in 2 ways, for example, as 352751657041 + 173267392516 = 593929^2 + 416254^2 .

It is not a de Polignac number, because 526019049557 - 2⁴ = 526019049541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 526019049499 and 526019049508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526019049587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80963 + ... + 1028879.

It is an arithmetic number, because the mean of its divisors is an integer number (45867382225).

Almost surely, 2^526019049557 is an apocalyptic number.

It is an amenable number.

526019049557 is a deficient number, since it is larger than the sum of its proper divisors (24389537143).

526019049557 is a wasteful number, since it uses less digits than its factorization.

526019049557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949012 (or 948989 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 53.

The spelling of 526019049557 in words is "five hundred twenty-six billion, nineteen million, forty-nine thousand, five hundred fifty-seven".